Synonyms of strengthen
20 similar words · 5 opposite words
Another word for strengthen is nerve. Other synonyms of strengthen are reinforce, corroborate, brace and thicken. The opposite of strengthen is debilitate.
Synonyms and similar words for strengthen
verbMore synonyms
- braceTo draw tight; to tighten; to put in a state of tension; to strain; to strengthen.
- consolidate
- build upTo strengthen.
- confirm formalTo strengthen; to make firm or resolute.
- corroborateTo make strong; to strengthen.
- fortify figurativelyTo give power, strength, or vigour to (oneself or someone, or to something); to strengthen.
- harden figurativelyTo strengthen.
- indurateTo inure; to strengthen; to make hardy or robust.
- invigorate
- nerveTo give strength; to supply energy or vigour.
- nerve up
- reinforceTo strengthen, especially by addition or augmentation.
- steelTo harden or strengthen; to nerve or make obdurate; to fortify against.
- thickenTo strengthen; to confirm.
- anneal archaic, figurativelyTo strengthen or harden.
- enstrengthen obsoleteRender strong or stronger; strengthen.
- intend obsoleteTo intensify; strengthen.
- munite obsoleteTo fortify, strengthen.
- roborate obsoleteSynonym of strengthen, to invigorate, to restore.
- strength obsoleteTo strengthen (all senses).
Opposite of strengthen
verbMore antonyms
- weaken
- atrophy
- debilitateTo make feeble; to weaken.
- enervate
- enfeebleTo make feeble.
Meaning of strengthen
- verb To make strong or stronger; to add strength to; to increase the strength of; to fortify.
- verb To empower; to give moral strength to; to encourage; to enhearten.
- verb To augment; to improve; to intensify.
strengthen in other languages
Questions about synonyms of strengthen
- What is another word for strengthen?
- Strengthen has 20 synonyms on Word.ws, such as nerve, reinforce, corroborate, brace and thicken.
- What is the opposite of strengthen?
- The opposite of strengthen is debilitate.
- What does strengthen mean?
- Strengthen means to make strong or stronger; to add strength to; to increase the strength of; to fortify.
Source and license
Adapted from Wiktionary: strengthen (page history and authors) and the entries of the words listed. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws grouped the synonyms and antonyms by meaning and added links. Wiktionary data of 2026-09-02.
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Cite this page: “Synonyms of strengthen.” Word.ws, https://word.ws/synonyms/strengthen. Based on Wiktionary, CC BY-SA 4.0.