1) An imperfect detail 2) Blemish 3) Deficiency 4) Failing 5) Fault 6) Fault or defect 7) Flaw 8) French word used in English 9) Immaturity 10) Imperfectness 11) Inadequacy 12) Peccancy 13) Shortcoming 14) State 1) Blemish 2) Bug 3) Defect 4) Defectiveness 5) Error 6) Fault 7) Faultiness 8) Flaw 9) Imperfectness 10) Incompleteness 11) Inferiority 12) Insufficiency 13) Mark 14) Spot 15) Stain 16) Wart 17) Weakness 
• (a.) The quality or condition of being imperfect; want of perfection; incompleteness; deficiency; fault or blemish.
deviation in structure from that of an ideal crystal
Im`per·fec'tion noun [ Latin imperfectio : confer French imperfection . See Imperfect , adjective ] The quality or condition of being imperfect; want of perfection; incompleteness; deficiency; fault or blemish. « Sent to my account With all my imp...
[n] - the state or an instance of being imperfect
imperfección, mancha
an imperfect detail; flaw: a law full of imperfections. · the quality or condition of being imperfect.
the state or an instance of being flawed