Of a person, action, etc.: provided with or having a motive; enthusiastic, motivated. Frequently with modifying word. See also well-motived, adj.

Of a person: compelled to accomplish a goal by difficult circumstances, ambition, etc. In later use: esp. determined to succeed; energetic and…

Designating a person who drives himself, herself, or another to work hard; energetic, driven. Cf. drive, n. 16.

gen. Provided with a motive or motivation; that has a conscious or unconscious motive. Hence more generally: enthusiastic, stimulated. Frequently…