adj.1 a full of keen desire, enthusiastic. b (of passions etc.) keen, impatient.
2 keen, impatient, strongly desirous (eager to learn; eager for news).
Phrases and idioms:
eager beaver colloq. a very or excessively diligent person.
Derivatives:
eagerly adv. eagerness n.
Etymology: ME f. AF egre, OF aigre keen, ult. f. L acer acris