firmest

adjective

SayFURM-istUS/ˈfɜɹmɪst/UK/ˈfɜːmɪst/

1 meaning of firmest

1
adjective
Superlative of firm. Use this to say something is the most solid or hard of all.
This pillow is the firmest one in the whole store.
We picked the firmest mattress for his sore back.
Note

firmest is a form of firm

firm, adjective: Hard and solid, not soft or easy to bend. Full entry

Forms: firmfirmer comparativefirmest superlative
Spelling: firm → firmest: add -est

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