4
inappropriate
4
inconvenient(inopportune, untimely)
4
overhasty(adjective, careless, thoughtless, impulsive, rash)
4
underdeveloped(adjective, inexperienced, young, childish, undeveloped)
3
late(untimely, untimeliness)
3
embryonic(adjective, earlier)
3
half-baked(adjective, impulsive, rash, early)
3
improper
3
impulsive(careless, thoughtless, reckless, hasty)
3
inauspicious(inopportune, untimely)
3
inexpedient(inopportune, untimely)
3
infelicitous(inopportune, untimely)
3
mistimed
3
oversoon(adjective, quick, improper, inappropriate, unfortunate)
3
rash(adjective, careless, impulsive, reckless, hasty)
3
raw(adjective, informal, first, inexperienced, primary)
3
too early
3
unpunctual(inopportune, untimely, untimeliness)
3
wrong
2
abortive(adjective, earlier)
11 years ago|6.7k views|share |citing 
APASmart Define. (2015). premature thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/premature/thesaurus/synonyms
ChicagoSmart Define. 2015. "premature thesaurus" https://smartdefine.org/premature/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, premature thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/premature/thesaurus/synonyms>.
MLASmart Define. "premature thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/premature/thesaurus/synonyms>