PREMATURE

[adjective] - happening or done too soon, esp. before the natural or desired timeHis premature retirement was caused by a scandal surrounding his financial affairs.Their criticisms seem premature considering that the results are not yet known.Lack of regular exercise increases the risk of premature death.He's a perfectly healthy baby even though he was (born) six weeks premature.She had a premature baby which was born at 35 weeks.