- 1
Not pure; Containing undesired intermixtures
- The impure gemstone was not good enough to be made into a necklace, so it was thrown out.
- 2
Not pure; Unhallowed; defiled by something unholy, either physically by an objectionable substance, or morally by guilt or sin
- 3
Not pure; Unchaste; obscene (not according to or not abiding by some system of sexual morality)
- He was thinking impure thoughts involving a girl from school.
- 4
Not pure; Having side effects.
- an impure method
syn. imperfect · impure · tainted
ant. pure · raw