Find Antonyms

tighten Antonyms

Opposite of tighten

Because the opposite of tighten shifts with each meaning, the 9 antonyms and opposite words below are separated across 3 exact definitions and ranked by contrast strength.
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• verb (Context 1)

To make or become tight, taut, or firmly fixed.

Usage Example

"Please use a wrench to loosen the loose bolts on the bicycle frame."

Strongest
loosen
slacken
Strong
unfasten
undo

• verb (Context 2)

To make or become stricter, more rigorous, or more closely controlled (of rules, security, or finances).

Usage Example

"The central bank decided to relax credit policies in an effort to curb inflation."

Strongest
relax
loosen
ease
Strong
weaken

• verb (Context 3)

To contract, narrow, or become constricted (especially of muscles, features, or a passage).

Usage Example

"His jaw began to relax as he listened to the frustrating news."

Strongest
relax
loosen
Strong
widen
dilate

Similar words to tighten

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

tauten
constrict
contract
tense
stiffen
toughen
strengthen
narrow
See all synonyms of tighten

• Nearby Words

tight
tightass
tightassed
tighten
tightener
tightfisted
tightfistedness

Cite this Entry

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