Irp Irp (ẽrp) adjective Making irps. [ Obsolete] B. Jonson.

Irp, Irpe Irp, Irpe (ẽrp) noun [ Etymol. uncertain.] A fantastic grimace or contortion of the body. [ Obsolete]

Smirks and irps and all affected humors.

B. Jonson.

Irradiance Ir·ra"di·ance (ĭr*rā"dĭ* a ns), Ir*ra"di*an*cy (- a n*sȳ) noun [ From Irradiant .] 1. The act of irradiating; emission of rays of light. 2. That which irradiates or is irradiated; luster; splendor; irradiation; brilliancy. Milton.

Irradiant Ir·ra"di·ant adjective [ Latin irradians , -antis , present participle See Irradiate .] Irradiating or illuminating; as, the irradiant moon. Boyse.

Irradiate Ir·ra"di·ate transitive verb [ imperfect & past participle Irradiated ; present participle & verbal noun Irradiating .] [ Latin irradiatus , past participle of irradiate. See In- in , and Radiate .] 1. To throw rays of light upon; to illuminate; to brighten; to adorn with luster.

Thy smile irradiates yon blue fields.

Sir W. Jones. 2. To enlighten intellectually; to illuminate; as, to irradiate the mind. Bp. Bull. 3. To animate by heat or light. Sir M. Hale. 4. To radiate, shed, or diffuse.

A splendid façade, . . . irradiating hospitality.

H. James.

Irradiate Ir·ra"di·ate intransitive verb To emit rays; to shine.

Irradiate Ir·ra"di·ate adjective [ Latin irradiatus , past participle ] Illuminated; irradiated. Mason.

Irradiation Ir·ra`di·a"tion noun [ Confer French irradiation .] 1. Act of irradiating, or state of being irradiated. 2. Illumination; irradiance; brilliancy. Sir W. Scott. 3. Fig.: Mental light or illumination. Sir M. Hale. 4. (Opt.) The apparent enlargement of a bright object seen upon a dark ground, due to the fact that the portions of the retina around the image are stimulated by the intense light; as when a dark spot on a white ground appears smaller, or a white spot on a dark ground larger, than it really is, esp. when a little out of focus.

Irradicate Ir·rad"i·cate transitive verb To root deeply. [ R.]

Irrational Ir·ra"tion·al adjective [ Latin irrationalis : confer French irrationnel . See In- not, and Rational .] 1. Not rational; void of reason or understanding; as, brutes are irrational animals. 2. Not according to reason; absurd; foolish.

It seemed utterly irrational any longer to maintain it.

I. Taylor. 3. (Math.) Not capable of being exactly expressed by an integral number, or by a vulgar fraction; surd; -- said especially of roots. See Surd . Syn. -- Absurd; foolish; preposterous; unreasonable; senseless. See Absurd .

Irrationality Ir·ra`tion·al"i·ty noun The quality or state of being irrational. "Brutish irrationaliity ." South.

Irrationally Ir·ra"tion·al·ly adverb In an irrational manner. Boyle.

Irrationalness Ir·ra"tion·al·ness noun Irrationality.

Irrebuttable Ir`re·but"ta·ble adjective Incapable of being rebutted. Coleridge.

Irreceptive Ir`re·cep"tive adjective Not receiving; incapable of receiving.

Irreclaimable Ir`re·claim"a·ble adjective Incapable of being reclaimed. Addison. -- Ir`re*claim"a*bly , ad....

Irrecognition Ir·rec`og·ni"tion noun [ Prefix in- not + recognition .] A failure to recognize; absence of recognition. Lamb.

Irrecognizable Ir·rec"og·ni`za·ble adjective Not recognizable. Carlyle.

Irreconcilability Ir·rec`on·ci`la·bil"i·ty noun The quality or state of being irreconcilable; irreconcilableness.

Irreconcilable Ir·rec"on·ci`la·ble adjective [ Prefix ir- not + reconcilable : confer French irréconciliable .] Not reconcilable; implacable; incompatible; inconsistent; disagreeing; as, irreconcilable enemies, statements. -- Ir*rec"on*ci`la*ble*ness , noun -- Ir*rec"on*ci`la*bly , adverb

Irreconcile Ir·rec"on·cile` transitive verb To prevent from being reconciled; to alienate or disaffect. [ Obsolete]

Irreconcilement Ir·rec"on·cile`ment noun The state or quality of being unreconciled; disagreement.

Irreconciliation Ir·rec`on·cil`i·a"tion noun Want of reconciliation; disagreement.

Irrecordable Ir`re·cord"a·ble adjective [ Prefix ir-- not + record : confer Latin irrecordabilis not to be remembered.] Not fit or possible to be recorded.

Irrecoverable Ir`re·cov"er·a·ble adjective Not capable of being recovered, regained, or remedied; irreparable; as, an irrecoverable loss, debt, or injury.

That which is past is gone and irrecoverable .

Bacon. Syn. -- Irreparable; irretrievable; irremediable; unalterable; incurable; hopeless. -- Ir`re*cov"er*a*ble*ness , noun -- Ir`re*cov"er*a*bly , adverb

Irrecuperable Ir`re·cu"per·a·ble adjective [ Latin irrecuperabilis : confer Old French irrecuperable . See In- not, and Recuperate .] Irrecoverable. -- Ir`re*cu"per*a*bly , adverb

Irrecured Ir`re·cured" adjective Incurable. [ Obsolete]

Irrecusable Ir`re·cu"sa·ble adjective [ Latin irrecusabilis ; prefix ir-- not + recusabilis that should be rejected, from recusare to reject: confer French irrécusable .] Not liable to exception or rejection. Sir W. Hamilton.

Irredeemability Ir`re·deem`a·bil"i·ty noun The state or quality of being irredeemable; irredeemableness.

Irredeemable Ir`re·deem"a·ble adjective Not redeemable; that can not be redeemed; not payable in gold or silver, as a bond; -- used especially of such government notes, issued as currency, as are not convertible into coin at the pleasure of the holder. -- Ir`re*deem"a*ble*ness , adverb

Irreducibility Ir`re·du`ci·bil"i·ty noun The state or quality of being irreducible.

Irreducible Ir`re·du"ci·ble adjective 1. Incapable of being reduced, or brought into a different state; incapable of restoration to its proper or normal condition; as, an irreducible hernia. 2. (Math.) Incapable of being reduced to a simpler form of expression; as, an irreducible formula. Irreducible case (Alg.) , a particular case in the solution of a cubic equation, in which the formula commonly employed contains an imaginary quantity, and therefore fails in its application. -- Ir`re*du"ci*ble*ness , noun -- -- Ir`re*du"ci*bly , adverb

Irreflection Ir`re·flec"tion noun Want of reflection.

Irreflective Ir`re·flect"ive adjective Not reflective. De Quincey.

Irreformable Ir`re·form"a·ble adjective Incapable of being reformed; incorrigible. Joseph Cook.

Irrefragability Ir·ref`ra·ga·bil"i·ty noun The quality or state of being irrefragable; incapability of being refuted.

Irrefragable Ir·ref"ra·ga·ble (ĭr*rĕf"rȧ*gȧ*b'l) adjective [ French irréfragable , Latin irrefragabilis . See Refragable .] Not refragable; not to be gainsaid or denied; not to be refuted or overthrown; unanswerable; incontestable; undeniable; as, an irrefragable argument; irrefragable evidence. -- Ir*ref"ra*ga*ble*ness , noun -- Ir*ref"ra*ga*bly , adverb Syn. -- Incontrovertible; unanswerable; indisputable; unquestionable; incontestable; indubitable; undeniable; irrefutable.

Irrefrangibility Ir`re·fran`gi·bil"i·ty noun The quality or state of being irrefrangible; irrefrangibleness.

Irrefrangible Ir`re·fran"gi·ble adjective Not refrangible; that can not be refracted in passing from one medium to another. -- Ir`re*fran"gi*ble*ness , noun

Irrefutable Ir`re·fut"a·ble adjective [ Latin irrefutabilis : confer French irréfutable . See Refute .] Incapable of being refuted or disproved; indisputable. -- Ir`re*fut"a*ble*ness , noun -- Ir`re*fut"a*bly , adverb

Irregeneracy Ir`re·gen"er·a·cy noun Unregeneracy.

Irregeneration Ir`re·gen`er·a"tion noun An unregenerate state. [ Obsolete]

Irregular Ir·reg"u·lar adjective [ Prefix ir- not + regular : confer French irrégulier .] Not regular; not conforming to a law, method, or usage recognized as the general rule; not according to common form; not conformable to nature, to the rules of moral rectitude, or to established principles; not normal; unnatural; immethodical; unsymmetrical; erratic; no straight; not uniform; as, an irregular line; an irregular figure; an irregular verse; an irregular physician; an irregular proceeding; irregular motion; irregular conduct, etc. Confer Regular .

Mazes intricate,
Eccentric, intervolved, yet regular
Then most when most irregular they seem.

Milton.

Leading the men of Herefordshire to fight
Against the irregular and wild Glendower.

Shak.

A flowery meadow through which a clear stream murmured in many irregular meanders.

Jones. Syn. -- Immethodical; unsystematic; abnormal; unnatural; anomalous; erratic; devious; crooked; eccentric; unsettled; uneven; variable; changeable; mutable; desultory; disorderly; wild; immoderate; intemperate; inordinate; vicious.

Irregular Ir·reg"u·lar noun One who is not regular; especially, a soldier not in regular service.

Irregularist Ir·reg"u·lar·ist noun One who is irregular. Baxter.

Irregularity Ir·reg`u·lar"i·ty noun ; plural Irregularities . [ Confer French irrégularité .] The state or quality of being irregular; that which is irregular.

Irregularly Ir·reg"u·lar·ly adverb In an irregular manner.

Irregulate Ir·reg"u·late transitive verb To make irregular; to disorder. [ Obsolete] Sir T. Browne.

Irregulous Ir·reg"u·lous adjective Lawless. [ Obsolete] Shak.

Irrejectable Ir`re·ject"a·ble adjective That can not be rejected; irresistible. Boyle.