fastest

adjective adverb

Stress: first syllable

Syllables: fast-est (2)
English Definition

Moving or capable of moving at the highest speed.

Example Sentence

The cheetah is the fastest land animal.

US IPA /ˈfæstɪst/
UK IPA /ˈfɑːstɪst/

Synonyms

quickest speediest rapidest swiftest

Antonyms

slowest