Premature

adj. mature before the proper time; untimely, before the proper time; too early; hasty, hurried

The term premature refers to something that occurs prior to the expected or normal time. It is generally used to refer to:Premature birthSee also:Premature ejaculationPremature menopausePremature ventricular contractionNonsense mutation (for premature stop codon)Senescence (for premature aging)
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Adjective
1. born after a gestation period of less than the normal time; "a premature infant"
(antonym) full-term
(see-also) immature
2. too soon or too hasty; "our condemnation of him was a bit previous"; "a premature judgment"
(synonym) previous(p)
(similar) early
3. uncommonly early or before the expected time; "illness led to his premature death"; "alcohol brought him to an untimely end"
(synonym) untimely
(similar) early

adj. premature, previous, untimely

adj. premature, early, previous, untimely