Bus″y (bĭz″zy̆), a. [OE. busi, bisi, AS. bysig; akin to D. bezig, LG. besig; cf. Skr. bhūsh to be active, busy.] 1. Engaged in some business; hard at work (either habitually or only for the time being); occupied with serious affairs; not idle nor at leisure; as, a busy merchant.
Sir, my mistress sends you word
That she is busy, and she can not come.
Shak.
2. Constantly at work; diligent; active.
Busy hammers closing rivets up.
Shak.
Religious motives... are so busy in the heart.
Addison.
3. Crowded with business or activities; — said of places and times; as, a busy street.
To-morrow is a busy day.
Shak.
4. Officious; meddling; foolish active.
On meddling monkey, or on busy ape.
Shak.
5. Careful; anxious. Chaucer.
Syn. — Diligent; industrious; assiduous; active; occupied; engaged.