slacken
4 synonyms and 2 antonyms for slacken, grouped by meaning and by how common each one is.
Verb — To slowly lose strength, tightness or speed.
Synonyms
Everyday swaps
Common words most readers know — safe in any writing.
Less common
Still standard English, but they carry more weight.
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
Synonyms by Meaning
Etymology
This word came from Middle English slakenen, equivalent to slack and -en.
Full origin of slacken →