sidesplittingly

Adverb

Meaning

in a very humorous manner

Source: WordNet

Synonyms

killingly funnily amusingly comically riotously uproariously screamingly rollickingly hysterically hilariously entertainingly drolly pricelessly

Antonyms

refreshingly

Close letter words and terms

sidesplit sidesplitter sidesplitting sidestall sidestep sidestep the issue