Sustaining much activity: a busy morning; a busy street.
Meddlesome; prying.
Being in use, as a telephone line.
Cluttered with detail to the point of being distracting: a busy design.
tr.v.
bus·ied, bus·y·ing, bus·ies To make busy; occupy: busied myself preparing my tax return.
[Middle English bisi, busi, from Old English bysig.] bus'i·ly adv., bus'y·ness n.
Synonyms: These adjectives suggest active or sustained effort to accomplish something. Busy, the most general, sometimes indicates constant and customary work or activity: a busy lawyer; a busy day. Industrious implies steady application that is often habitual or the result of a natural inclination: weeds pulled by an industrious gardener. Diligent suggests constant painstaking effort, often toward the achievement of a specific goal: a diligent detective. Assiduous emphasizes sustained application: assiduous efforts to learn French. Sedulous adds to assiduous the sense of persistent, thoroughgoing endeavor: "the sedulous pursuit of legal and moral principles" (Ernest van den Haag).
[biz-uh-lee] 
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