Lose velocity; move more slowly.

synonyms: decelerate, retard, slow down, slow up.

Dutch: vertragen

Become slow or slower:
— Production slowed.

synonyms: slack, slacken, slow down, slow up.

Dutch: vertragen

Cause to proceed more slowly:
— The illness slowed him down.

synonyms: slow down, slow up.

Not moving quickly; taking a comparatively long time.

Roget 685: leisure, leisurely; slow etc. 275; deliberate, quiet, calm, undisturbed; at leisure, at one's ease, at loose ends, at a loose end.   

Roget 174: moderate; lenient etc. 740; gentle, mild, mellow; cool, sober, temperate, reasonable, measured; tempered etc. v.; calm, unruffled, quiet, tranquil, still; slow, smooth, untroubled; tame; peaceful, peaceable; pacific, halcyon.    unexciting, unirritating^†; soft, bland, oily, demulcent, lenitive, anodyne; hypnotic etc. 683; sedative; antiorgastic^†, anaphrodisiac^†.    mild as mother's milk; milk and water.    ... show more

Roget 133: late, tardy, slow, behindhand, serotine^†, belated, postliminious^†, posthumous, backward, unpunctual, untimely; delayed, postponed; dilatory etc. (slow) 275; delayed etc. v.; in abeyance.    ... show more

Roget 110: durable; lasting etc. v.; of long duration, of long-standing; permanent, endless, chronic, long-standing; intransient^†, intransitive; intransmutable^†, persistent; lifelong, livelong; longeval^†, long-lived, macrobiotic, diuturnal^†, evergreen, perennial; sempervirent^†, sempervirid^†; unrelenting, unintermitting^†, unremitting; perpetual etc. 112.    lingering, protracted, prolonged, spun out etc. v.. long-pending, long-winded; slow etc. 275.    ... show more

At a slow tempo.

Slow to learn or understand; lacking intellectual acuity:
— Worked with the slow students.

synonyms: dense, dim, dull, dumb, obtuse.

Polish: tępogłowy, tępy

used of timepieces Indicating a time earlier than the correct time.

So lacking in interest as to cause mental weariness.

synonyms: boring, deadening, dull, ho-hum, irksome, tedious, tiresome, wearisome.

Roget 841: wearying etc. v.; wearing; wearisome, tiresome, irksome; uninteresting, stupid, bald, devoid of interest, dry, monotonous, dull, arid, tedious, humdrum, mortal, flat; prosy, prosing; slow, soporific, somniferous.    disgusting etc. v.; unenjoyed^†.    weary, tired etc. v.; drowsy etc. (sleepy) 683; uninterested, flagging, used up, worn out, blase, life-weary, weary of life; sick of.    ... show more

Roget 843: dull, dull as ditch water; unentertaining, uninteresting, flat, dry as dust; unfunny, unlively^†, logy [U.S.]; unimaginative; insulse^†; dry as dust; prosy, prosing, prosaic; matter of fact, commonplace, pedestrian, pointless; weary stale flat and unprofitable" [Hamlet]. stupid, slow, flat, insipid, vapid, humdrum, monotonous; melancholic etc. 837; stolid etc. 499; plodding.    boring, tiresome, tedious etc. 841.    ... show more

Polish: niezajmujący, nudny, nieinteresujący

of business Not active or brisk:
— Business is dull (or slow).

synonyms: dull, sluggish.

Roget 683: inactive; motionless etc. 265; unoccupied etc. (doing nothing) 681; unbusied^†.    indolent, lazy, slothful, idle, lusk^†, remiss, slack, inert, torpid, sluggish, otiose, languid, supine, heavy, dull, leaden, lumpish^†; exanimate^†, soulless; listless; drony^†, dronish^†; lazy as Ludlam's dog.    dilatory, laggard; lagging etc. v.; slow etc. 275; rusty, flagging; lackadaisical, maudlin, fiddle-faddle; pottering etc. v.; shilly-shally etc. (irresolute) 605.    sleeping, etc. v.; asleep; fast asleep, dead asleep, sound asleep; in a sound sleep; sound as a top, dormant, comatose; in the arms of Morpheus, in the lap of Morpheus.    sleepy, sleepful^†; dozy^†, drowsy, somnolent, torpescent^†, lethargic, lethargical^†; somnifacient^†; statuvolent^†, statuvolic^†; heavy, heavy with sleep; napping; somnific^†, somniferous; soporous^†, soporific, soporiferous^†; hypnotic; balmy, dreamy; unawakened, unawakened.    sedative etc. 174.    ... show more

Roget 275: slow, slack; tardy; dilatory etc. (inactive) 683; gentle, easy; leisurely; deliberate, gradual; insensible, imperceptible; glacial, languid, sluggish, slow paced, tardigrade^†, snail-like; creeping etc. v.; reptatorial^†.    ... show more

Roget 172: inert, inactive, passive; torpid etc. 683; sluggish, dull, heavy, flat, slack, tame, slow, blunt; unreactive; lifeless, dead, uninfluential^†.    latent, dormant, smoldering, unexerted^†.    ... show more

Without speed (`slow' is sometimes used informally for `slowly'):
— He spoke slowly.
— Please go slow so I can see the sights.

synonyms: easy, slowly, tardily.

Of timepieces:
— The clock is almost an hour slow.

synonym: behind.