Definition of: apt

(apt) adjective
1. Having a natural or habitual tendency; liable; likely.
2. Quick to learn; skilful.
3. Pertinent; apposite. [< L aptus fitted, suited]
—apt′ly adverb
—apt′ness noun Synonyms: liable, likely. Apt inclines toward the meaning of likely and indicates an inherent inclination or ability. The distinction between likely and liable is that likely looks upon the probable event as favorable, liable as unfavorable; likely to succeed; liable to fail. See APPROPRIATE, CLEVER, LIKELY, SAGACIOUS.