UN- It is added to adjectives, “-ed” or “-ing” participles. It means “not”, “the opposite of”.
Examples: unhappy, unexpected, unfair.
Examples: insane, illogical, irreverent, improper.
DIS- It is added to adjectives, verbs and abstract nouns. It means the same as “un-“.
Examples: disobedient, disloyal, dislike.
MIS- It means “badly”, “wrongly” and it is added to verbs, abstract nouns and participles. It is a pejorative prefix.
Examples: misfortune, misunderstand, misused.
Examples: happiness, selfishness.
-ITY This is added to adjectives to form abstract nouns denoting a “state” or “quality”. It is often used with adjectives of classical or French origin.
Examples: sanity, respectability.
-ATION This is added to verbs to form abstract nouns meaning “state”, “action”.
Examples: exploration, explanation.
-MENT It is added to verbs to form abstract nouns denoting “state”, “action”.
Examples: arrangement, amazement.
-EN Added mainly to monosyllabic adjectives.
2.3.1. SUFFIXES ADDED TO NOUNS.
-FUL It is added to abstract nouns to make adjectives meaning “full of”, “having”, “giving”.
Examples: delightful, successful, hopeful, helpful.
-LESS Added to nouns to form adjectives meaning “without”, “not giving”.
Examples: speechless, homeless, careless.
-Y It is added to concrete mass nouns. It means “like”, “full of”, “covered with”.
Examples: creamy, hairy, noisy.
-ISH It is added to proper and countable nouns to form adjectives meaning “belonging to” or “having the character of”.
Examples: Spanish, Danish, selfish, foolish.
2.3.2. SUFFIXES ADDED TO VERBS.
-ABLE Added mainly to transitive verbs to form adjectives, usually with a passive meaning.
Examples: drinkable (able to be drunk)