untimely

-Ocurring or done at inappropiate time, inopportune.
-Ocurring to soon; premature. -an untimely death

death/end: muerte, fin prematuro
arrival: inoportuno, intempestivo
untimely end: un final inoportuno

adv: inopportunely, prematurely.
untimeliness
- An untimely frost can ruin the crops that are not harvested.
Antonyms: appropriate, opportune, timely