Unanimous can be followed by several prepositions, but the meaning changes depending on whether you describe agreement in an action, on a topic, or for support.
Use unanimous in for agreement in doing or expressing something, unanimous on or about for agreement concerning a topic, and unanimous for support of a proposal or person. Regarding is less common but possible in formal contexts.
These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.
Use in when people share the same decision, view, or behaviour.
Use on before issues, questions, or points under discussion.
About is possible in less formal English when discussing shared opinions.
Use for when everyone supports a person, motion, or choice.
The same subject can take different constructions because each sentence answers a different question.
Some combinations appear in real text but do not mean what learners often assume.
Use for when talking about backing a proposal or candidate.
✕ They were unanimous on the proposal. ✓ They were unanimous for the proposal.In refers to shared action or judgement; on refers to the topic discussed.
✕ The panel was unanimous in the issue. ✓ The panel was unanimous on the issue.Choose the expression that matches the intended meaning.
Paste the complete sentence below. Linguix checks the preposition together with grammar, spelling, punctuation, and style.
Yes. Use unanimous on before a topic or issue.
Yes, especially in less formal English when discussing shared opinions.
Use it when everyone supports the same proposal, candidate, or decision.
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