slow

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”

at a slow tempo

“the band played a slow waltz”

slow to learn or understand; lacking intellectual acuity

“so dense he never understands anything I say to him”

“never met anyone quite so dim”

“{'source': 'Thackeray', 'text': 'although dull at classical learning, at mathematics he was uncommonly quick'}”

“dumb officials make some really dumb decisions”

(used of timepieces) indicating a time earlier than the correct time

“the clock is slow”

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”

(of business) not active or brisk

“business is dull (or slow)”

“a sluggish market”

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”

showing a time that is earlier than the actual time

“the clock is almost an hour slow”

“my watch is running behind”

lose velocity; move more slowly

“The car decelerated”

become slow or slower

“Production slowed”

cause to proceed more slowly

“The illness slowed him down”