untimely

Occurring or done at an inappropriate time; inopportune.

Occurring too soon; premature.

Inopportunely.

Prematurely.

In other than the natural time; unseasonably.

Not timely.

Ill-timed; inopportune; unsuitable; unfitting; improper.

Happening before the natural time; premature: as, untimely death; untimely fate.

Not timely; done or happening at an unnatural, unusual, or improper time; unseasonable; premature; inopportune.

Out of the natural or usual time; inopportunely; prematurely; unseasonably.