1) An illegal act 2) Breach of law 3) Disobedience 4) French word used in English 5) Illegal condition or quality 6) Illicitness 7) Infraction of the law 8) Lawlessness 9) Unconformity 10) Unlawfulness 11) Violation of law 1) No-no 2) Outlawry 3) Undueness 
• (n.) The quality or condition of being illegal; unlawfulness; as, the illegality of trespass or of false imprisonment; also, an illegal act.
Il`le·gal'i·ty noun ; plural Illegalities . [ Confer French illégalité .] The quality or condition of being illegal; unlawfulness; as, the illegality of trespass or of false imprisonment; also, an illegal act. 
[n] - unlawfulness by virtue of violating some legal statute
noun unlawfulness by virtue of violating some legal statute
illegal condition or quality; unlawfulness. · an illegal act.