hold up, delay, or reduce speed.
A synonym for slow or sluggish is lethargic.
synonym
Slow and fast are antonyms; a synonym is a word with a similar meaning.
Slow,
Slow, growing or lazy.
lessen, ebb, slow, reduce
a synonym for slow beginning with the letter r is retard
slow, steady, regular, measured, slow but sure, plodding, ongoing, continuing
Synonyms of accelerate: forward, speed up, advance, stimulate, quicken, hurry Antonyms of accelerate: decelerate, slow down, retard
a synonym for turn down is embarrass
A synonym for the word "sluggish" is "lethargic" or "listless."
Sluggish, unhurried, measured, deliberate, leisurely and dawdling.