Find Antonyms

slowness Antonyms

Opposite of slowness

Because the opposite of slowness shifts with each meaning, the 14 antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
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• noun (Context 1)

The quality or state of moving, acting, or progressing at a low speed or pace.

Usage Example

"The frustrating speed of the morning traffic caused many commuters to arrive late."

Strongest
speed
quickness
rapidity
swiftness
Strong
promptness
haste
celerity
velocity

• noun (Context 2)

A lack of alertness, energy, or quickness in understanding, learning, or reacting.

Usage Example

"A sudden lack of sleep often leads to mental alertness during afternoon lectures."

Strongest
alertness
sharpness
Strong
acuity
keenness
agility
readiness

Similar words to slowness

Words similar to slowness shift depending on context. Common synonyms include:

sluggishness
dullness
tardiness
leisureliness
lethargy
torpor
deliberateness
obtuseness
See all synonyms of slowness

• Nearby Words

slowdown
slowish
slowly
slowness
slowpoke
sludgy
slug

Cite this Entry

Wordmom. (2026). Antonyms for Slowness. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/slowness
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