Word Type

Adjective

Adjective

Noun

The word "premature" can be used as adjective, adjective and noun.

Word Relationships

Opposites (Antonyms)

full-term

Derived Terms

nonpremature preemie premature antifascist premature birth premature ejaculation premature ejaculator premature optimisation premature optimization prematurely prematureness prematurity unpremature

Derived From

mature

Narrower Terms (Hyponyms)

rathe

Related Terms

get ahead of oneself prematurely prompt unexpected unprepared

Related Terms

anticipated desired earlier get ahead of oneself immature infant mature maturity premature ejaculation prematurely prepared readiness

Similar Terms

early early immature

Synonym Network

untimely

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.