What is a synonym for "im-"?

Common synonyms include: a, an, dys, i, il, in.

Im-

prefix

prefix ·Rare ·Advanced level

Prefix

1
Expressing negation; not. morpheme
2
Alternative form of the prefix em-, itself variant of en-. alt-of, alternative, morpheme

Etymology 1

From Latin im-, assimilated form of in- used before b-/p-/m-.

Etymology 2

From em-, from Old French em-. Also from later Middle French im-, partly by confusion with im- of Latin origin (on which see above).

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.