Gradable and non-gradable adjectives in English Grammar

Gradable and non-gradable adjectives

Non-gradable adjectives (strong/extreme adjectives) already express something very special, so we do not usually use the following adverbs with them: a bit, deeply, extremely, fairly, rather, slightly, terribly, very.

We use: absolutely, completely, entirely, simply, totally, utterly.

Example:
This box here is very small.

That box over there is absolutely tiny.

adverb gradable adjective   adverb ungradable adjective/
strong adjective

a bit
deeply
extremely
fairly
rather
slightly
terribly
very

angry   absolutely
completely
entirely
simply
totally
utterly
furious
bad awful, dreadful, terrible
beautiful gorgeous, stunning
big enormous, huge
clean spotless
cold freezing, icy
confused baffled
dirty filthy
embarrassed mortified
exciting thrilling
expensive exorbitant
far remote
funny, amusing hilarious
good excellent, fantastic, terrific, marvellous
happy delighted, elated
hot boiling
hungry starving, ravenous
important necessary, vital
interesting fascinating
long endless
nice lovely
old ancient, antique
pretty gorgeous
quiet silent
sad, upset devastated
scared, frightened terrified, horrified
silly ridiculous
small tiny
sure positiv
surprised amazed, astonished, flabbergasted
tasty delicious
tired exhausted
ugly hideous
unpleasant disgusting
wet soaking, drenched

The following adverbs can be used with gradable and non-gradable adjectives: quite, pretty, really.

Example:
This box here is really small.

That box over there is really tiny.


Thanks to Oleg.