having less some thing needed or desirable for conclusion or brilliance; a deficiency: a visual problem.
An imperfection that creates inadequacy or failure; a shortcoming. See Synonyms at blemish.
A fault or malfunction.
Want or absence of some thing needed for completeness or perfection; deficiency; -- in opposition to superfluity.
Failing; fault; imperfection, whether actual or ethical; blemish
Want or insufficient something; especially, the possible lack of something is important perfectly or completeness; a fault; a blemish; an imperfection: because, a defect in timber; a defect in the organs of hearing or seeing; a defect of memory or judgment.