What is a negative prefix?

It’s a group of letters added to the beginning of a word to form the word’s opposite.Examples:unfriendlyimpatientincompletedishonestirresponsibleilliterate

think of other words formed with negative prefixes.

UN UNFORGETTABLE UNACCEPTABLE

IM IMPOLITE IMMORTAL

IN INSECURE INDECISIVE

IR IRREPLACEABLE IRREGULAR

DIS DISLOYAL DISPLEASED

IL ILLEGIBLE ILLEGAL

.

1.appropriate

2.courteous

3.excusable

4.imaginable

5.honest

6.pleasant

7.rational

8.mature

inapproriate

discourteousinexcusable

unimaginabledishonestunpleasantirrationalimmature

Grouping by prefix

Dis Im In Ir Un

acceptable considerate

respectful

responsible appropriate

proper

honest

imaginable mature

polite

pleasant

excusable

courteous

rational

Language note:Many words starting with m- or p- form the negative with the prefix im.

Many words starting with r- form their negative with the prefix ir-. For example, immobile, impossible, irregular, immortal, impatient, irrepleceable. There are exceptions; for example, displeased, disrespectful.

Dis- Un- Il- Ir-

CONTENTED ENTHUSIASTIC HAPPY HONEST LEGAL LITERATE LOGICAL PLEASANT REGULAR RELEVANT REPLACEABLE

REPUTABLE RESPONSIBLE USED

DIScontented

DIShonest

DISreputable

DISused

UNenthusiastic

UNhappy

UNpleasant

UNused

Illegal

Illiterate

illogical

IRregular

IRrelevant

IRreplaceable

IRresponsible

DIScontented UNenthusiastic Illegal IRregularDIShonest UNhappy Illiterate IRrelevant

DISreputable UNpleasant illogical IRreplaceable

DISused UNused IRresponsible