Early
Premature
Synonyms: Untimely, too soon, before time, prompt, quick, rapid, without delay, rathe, premature, too early, unseasonable, timely, speedy, fast, and expeditious.
Prior
Synonyms: Advance, prior, preliminary, primary, test, forward, initial, first, pilot, and trial.
Prematurely
Synonyms: Before the usual time, prematurely, ahead of time, in good time, before the appointed time, too soon, ahead of schedule, and betimes.
Example Sentences
I woke up early this morning.
She arrived early for the meeting.
Early preparation leads to success later.
He enjoys jogging early in mornings.