Optimistic is usually followed by about when talking about hopes or expectations. Other prepositions are less common or belong to separate sentence elements.
Use optimistic about to talk about a situation or future result. Optimistic for appears occasionally when referring to prospects for someone or something. Of, in, and on are generally not standard complements after optimistic.
These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.
Use about for plans, events, outcomes, or the future.
For sometimes introduces the person or thing whose future looks positive.
About can be followed by a noun or gerund.
In usually introduces the area or situation, not a fixed complement after optimistic.
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.
On is generally not used directly after optimistic.
✕ She is optimistic on the results. ✓ She is optimistic about the results.Optimistic of sounds formal or old-fashioned in many contexts.
✕ We are optimistic of our chances. ✓ We are optimistic about our chances.About is usually better for topics and situations.
✕ They are optimistic for the new policy. ✓ They are optimistic about the new policy.In often adds context rather than completing the adjective.
✕ He is optimistic in the plan. ✓ He is optimistic about the plan.Choose the expression that matches the intended meaning.
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Yes. It is the most natural choice for discussing hopes, plans, and expectations.
Yes. It is used when discussing positive prospects for a person, group, or thing.
Not completely, but it sounds formal or uncommon in modern everyday English.
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