Verb

• S: (v) decelerate (decelerate%2:30:00::), slow (slow%2:30:00::), slow down (slow_down%2:30:00::), slow up (slow_up%2:30:01::), retard (retard%2:30:00::) (lose velocity; move more slowly) "The car decelerated"
• S: (v) slow (slow%2:30:01::), slow down (slow_down%2:30:01::), slow up (slow_up%2:30:03::), slack (slack%2:30:05::), slacken (slacken%2:30:02::) (become slow or slower) "Production slowed"
• S: (v) slow (slow%2:30:05::), slow down (slow_down%2:30:04::), slow up (slow_up%2:30:02::) (cause to proceed more slowly) "The illness slowed him down"

Adjective

• S: (adj) slow (slow%3:00:01::) (not moving quickly; taking a comparatively long time) "a slow walker"; "the slow lane of traffic"; "her steps were slow"; "he was slow in reacting to the news"; "slow but steady growth"
• S: (adj) slow (slow%3:00:02::) (at a slow tempo) "the band played a slow waltz"
• S: (adj) dense (dense%3:00:00:stupid:00), dim (dim%3:00:00:stupid:00), dull (dull%3:00:00:stupid:00), dumb (dumb%3:00:00:stupid:00), obtuse (obtuse%3:00:00:stupid:00), slow (slow%3:00:00:stupid:00) (slow to learn or understand; lacking intellectual acuity) "so dense he never understands anything I say to him"; "never met anyone quite so dim"; "although dull at classical learning, at mathematics he was uncommonly quick"- Thackeray; "dumb officials make some really dumb decisions"; "he was either normally stupid or being deliberately obtuse"; "worked with the slow students"
• S: (adj) slow (slow%3:00:03::) ((used of timepieces) indicating a time earlier than the correct time) "the clock is slow"
• S: (adj) boring (boring%3:00:00:uninteresting:00), deadening (deadening%3:00:00:uninteresting:00), dull (dull%3:00:01:uninteresting:00), ho-hum (ho-hum%3:00:00:uninteresting:00), irksome (irksome%3:00:00:uninteresting:00), slow (slow%3:00:00:uninteresting:00), tedious (tedious%3:00:00:uninteresting:00), tiresome (tiresome%3:00:00:uninteresting:00), wearisome (wearisome%3:00:00:uninteresting:00) (so lacking in interest as to cause mental weariness) "a boring evening with uninteresting people"; "the deadening effect of some routine tasks"; "a dull play"; "his competent but dull performance"; "a ho-hum speaker who couldn't capture their attention"; "what an irksome task the writing of long letters is"- Edmund Burke; "tedious days on the train"; "the tiresome chirping of a cricket"- Mark Twain; "other people's dreams are dreadfully wearisome"
• S: (adj) dull (dull%3:00:00:inactive:03), slow (slow%3:00:00:inactive:03), sluggish (sluggish%3:00:00:inactive:03) ((of business) not active or brisk) "business is dull (or slow)"; "a sluggish market"

Adverb

• S: (adv) slowly (slowly%4:02:02::), slow (slow%4:02:00::), easy (easy%4:02:02::), tardily (tardily%4:02:00::) (without speed (`slow' is sometimes used informally for `slowly')) "he spoke slowly"; "go easy here--the road is slippery"; "glaciers move tardily"; "please go slow so I can see the sights"
• S: (adv) behind (behind%4:02:04::), slow (slow%4:02:01::) (of timepieces) "the clock is almost an hour slow"; "my watch is running behind"