Synonyms of reinforce

reinforce

verb

ˌrē-ən-ˈfȯrs 

variants also reenforce

as in to bolster

to provide evidence or information for (as a claim or idea)

letters of recommendation that reinforced the committee's opinion of the candidate

Synonyms & Similar Words

• bolster
• prove
• support
• confirm
• corroborate
• buttress
• establish
• back
• substantiate
• verify
• shore (up)
• affirm
• validate
• avouch

Antonyms & Near Antonyms

• undermine
• weaken
• undercut

Example Sentences

Recent Examples of reinforce

For some users, this can create confusion or reinforce unhealthy beliefs. — Megan Kelly, The Conversation, 13 Aug. 2026

In spite of his conduct, Jones was skilled at speaking in a way that appealed to progressives and reinforced his left-wing bona fides. — James Kirchick, The Atlantic, 13 Aug. 2026

And the need for governments to respond to the record heat waves buffeting the continent appears likely to reinforce that shift. — Ned Temko, Christian Science Monitor, 13 Aug. 2026

This transnational anti-trans and anti-gender organizing is reinforced by the flows of global funding. — Literary Hub, 13 Aug. 2026