slow

cause to proceed more slowly

“The illness slowed him down”

not moving quickly; taking a comparatively long time

“a slow walker”

indicating a time earlier than the correct time

“the clock is slow”

of timepieces

“the clock is almost an hour slow”

without speed (`slow' is sometimes used informally for `slowly')

“he spoke slowly”

so lacking in interest as to cause mental weariness

slow to learn or understand; lacking intellectual acuity

“worked with the slow students”

become slow or slower

“Production slowed”

lose velocity; move more slowly

not active or brisk

“business is dull (or slow)”

at a slow tempo

“the band played a slow waltz”