| anticipatory | |
| belated(inopportune, untimely) | |
| crude(adjective, inexperienced, young, childish, undeveloped) | |
| delinquent(inopportune, untimely) | |
| half-cocked(adjective, impulsive, rash) | |
| ill-advised(careless, thoughtless, impulsive, reckless, hasty) | |
| incipient | |
| incomplete(adjective, earlier) | |
| jejune(inexperienced, young, childish, undeveloped, unformed) | |
| old | |
| overdue | |
| prematurely | |
| prematurity | |
| unready | |
| young(adjective, first, inexperienced, primary, childish) | |
| adolescent(inexperienced, young, childish, undeveloped, unformed) | |
| adventurous(careless, thoughtless, impulsive, reckless, hasty) | |
| ago | |
| ahead(adverb, early, headlong, onward) | |
| antecedent |
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| APA | Smart Define. (2015). premature thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/premature/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "premature thesaurus" https://smartdefine.org/premature/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, premature thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/premature/thesaurus/synonyms>. |
| MLA | Smart Define. "premature thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/premature/thesaurus/synonyms> |