I. ˌən-ˈtīm-lē adverb
Date: 13th century
1. : at an inopportune time : unseasonably
2. : before the due, natural, or proper time : prematurely
went untimely to the grave
II. adjective
Date: 13th century
1. : inopportune , unseasonable
an untimely joke
untimely frost
2. : occurring or done before the due, natural, or proper time : too early : premature
an untimely death
• un·time·li·ness noun