see, you can form new words with different meanings
by adding a prefix or a sufix.Negative Prefixes
un-
dis-
im-
ir-
in-
il-
unfair;
uncommon;
untrue...
illegal;
illegitimate;
illogical...
impossible;
immature;
imperfect...
disadvantage;
dislike;
dishonest...
irrational;
irrelevant;
irresponsible...
incorrect;
informal;
inconvenient...
Mis-
misunderstanding;
mistrust;
misbehave...
Non-
non-smoker;
non-violent;
non-profit...