- keen or ardent in desire or feeling; impatiently longing: I am eager for news about them. He is eager to sing.
- characterized by or revealing great earnestness: an eager look.
- Obsolete. keen; sharp; biting.
- (postpositive; often foll by to or for) impatiently desirous (of); anxious or avid (for)he was eager to see her departure
- characterized by or feeling expectancy or great desirean eager look
- archaic tart or biting; sharp
- a variant spelling of eagre
late 13c., “strenuous, ardent, fierce, angry,” from Old French aigre “sour, acid; harsh, bitter, rough; eager greedy; lively, active, forceful,” from Latin acrem (nominative acer) “keen, sharp, pointed, piercing; acute, ardent, zealous” (see acrid).
Meaning “full of keen desire” (early 14c.) seems to be peculiar to English. The English word kept an alternative meaning of “pungent, sharp-edged” till 19c. (e.g. Shakespeare’s “The bitter clamour of two eager tongues,” in “Richard II”). Related: Eagerly; eagerness.