(adj): predicate) -- (on the job
(adj): doing arduous or unpleasant work
(adj): having ones attention or mind or energy engaged
(adj): too busy
(adj): predicate) -- (kept occupied or engaged
(adj): busy or occupied with
(adj): overcrowded or cluttered with detail
(adj): vs. plain) -- (not plain; decorative or ornamented
(adj): intrusive in a meddling or offensive manner
(adj): vs. unintrusive) -- (tending to intrude (especially upon privacy)
(adj): crowded with or characterized by much activity
(adj): vs. inactive) -- (full of activity or engaged in continuous activity
(adj): predicate) -- ((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)
(adj): vs. unoccupied) -- (held or filled or in use
(v): keep busy with
(v): exert oneself by doing mental or physical work for a purpose or out of necessity
"Busy, busy, busy is what we Bokononists whisper whenever we think of how complicated and unpredictable the machinery of life really is." - Cat's Cradle