Adjective Opposites using prefixes

Sometimes we can form an opposite of an adjective by adding a prefix. For example:

  1. indecent
  2. unfriendly
  3. impossible
  4. disabled
  5. antisocial

What prefix is used to form the opposite of these adjectives?

conscious convenient correct employed
fair formal friendly healthy
honest legal necessary pleasant
polite punctual proportionate regular
usual well tidy satisfactory
successful

Not all opposites can be formed this way. Sometimes we have to find another adjective with an opposite meaning. The opposite of big is small (not unbig).
adjective opposites test 1 (Log into Moodle)

We can make opposite meanings from some adjectives with a prefix. It is a good idea to learn these opposites together with the original adjective. Other adjectives need another different word to make the opposite.

Here are some examples of opposites formed with a prefix.

un-

  1. un
    interesting
  2. un
    fashionable

in-

  1. in
    effective
  2. in
    active

im-

  1. im
    possible
  2. im
    practicle

dis-

  1. dis
    interested
  2. dis
    organised

mis-

  1. mis
    understood
  2. mis
    guided

anti-

  1. anti-social
  2. antidisestablishmentarianism

ab-

  1. abnormal

a-

  1. asymmetric