flattest

adjective

SayFLAT-ist/ˈflætɪst/

1 meaning of flattest

1
adjective
Superlative of flat. Use it to say something is the most flat of all.
This is the flattest road we have driven on all day.
Kansas has some of the flattest land in the whole country.
Note

flattest is a form of flat

flat, adjective: Level and smooth, with no parts higher or lower than the rest. Full entry

Forms: flatflatter comparativeflattest superlative
Spelling: flat → flattest: double the t, add -est

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