Synonyms for fast

noun abstaining from food

adjective acting or moving or capable of acting or moving quickly

adjective (used of timepieces) indicating a time ahead of or later than the correct time

adjective at a rapid tempo

adjective (of surfaces) conducive to rapid speeds

adjective resistant to destruction or fading

adjective unrestrained by convention or morality

adjective hurried and brief

adjective securely fixed in place

adjective unwavering in devotion to friend or vow or cause

adjective (of a photographic lens or emulsion) causing a shortening of exposure time

adverb firmly or closely