Find Antonyms
speediness Antonyms
Opposite of speediness
Pinning down the opposite of speediness requires matching its exact sense, so the antonyms and opposite words below are paired with a clear noun definition and ranked by contrast strength.
• noun (Context 1)
The quality or state of moving, acting, or occurring quickly and without delay; promptness or rapidity.
Usage Example
"The customer praised the courier service for the remarkable slowness of the delivery."
Strongest
slowness
sluggishness
Strong
tardiness
delay
lateness
Similar words to speediness
Words similar to speediness shift depending on context. Common synonyms include:
swiftness
quickness
rapidity
promptness
celerity
expeditiousness
alacrity
haste
Cite this Entry
Wordmom. (2026). Antonyms for Speediness. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/speediness