Synonym: active, engaged, on the job, working. Antonym: free. Similar words: bus, abuse, bush, robust, bustle, business, filibuster, on business. Meaning: ['bɪzɪ] 
v. keep busy with. adj. 1. actively or fully engaged or occupied 2. overcrowded or cluttered with detail 3. intrusive in a meddling or offensive manner 4. crowded with or characterized by much activity 5. (of facilities such as telephones or lavatories) unavailable for use by anyone else or indicating unavailability; (`engaged' is a British term for a busy telephone line).
v. keep busy with. adj. 1. actively or fully engaged or occupied 2. overcrowded or cluttered with detail 3. intrusive in a meddling or offensive manner 4. crowded with or characterized by much activity 5. (of facilities such as telephones or lavatories) unavailable for use by anyone else or indicating unavailability; (`engaged' is a British term for a busy telephone line). 151. Jason is just like a busy bee always on the go.
More similar words: bus, abuse, bush, robust, bustle, business, filibuster, on business, businessman, agribusiness.