Antonyms for the phrase "was inclined to think" may include "was disinclined to think," "didn't consider," or "was skeptical." These phrases indicate a lack of certainty or belief in the subject matter, as opposed to the initial inclination to believe something. Additionally, antonyms may include more specific phrases such as "disagreed with," "doubted," or "challenged," which indicate active skepticism or disagreement with the subject matter. Overall, antonyms for "was inclined to think" suggest a lack of conviction or belief in the subject matter, indicating a need for further investigation or open-minded analysis.