slow

adjective

Moving, acting, or happening at a low speed; not quick or rapid.

"The traffic was incredibly slow today."

verb

To reduce the speed of something or someone; to decelerate.

"You need to slow down."

adverb

At a low speed or without haste; in a slow manner.

"Please drive slow through the village."

Thesaurus

Synonyms: sluggish, dull, inactive, slow down, slow up, adagio, larghetto, largo, andante, moderato, larghissimo, lento

Antonyms: accelerate, apace, chop-chop, fast, in short order, quicken, quickly, rapidly, speed, speed up, speedily