adj. 25B6; adjective
they are busy raising money : OCCUPIED (IN), engaged in, involved in, employed in, working at, hard at work (on); rushed off one's feet, hard-pressed; on the job, absorbed, engrossed, immersed, preoccupied; informal (as) busy as a bee, on the go, hard at it; Brit. informal on the hop.
she is busy at the moment : UNAVAILABLE, engaged, occupied; working, in a meeting, on duty; informal tied up.
a busy day : HECTIC, active, lively, full, eventful; energetic, tiring.
the town was busy : CROWDED, bustling, hectic, swarming, teeming, full, thronged.
a busy design : ORNATE, over-elaborate, overblown, overwrought, overdone, fussy, cluttered, overworked.
idle, free, quiet.
25B6; verb he busied himself with paperwork : OCCUPY, involve, engage, concern, absorb, engross, immerse, preoccupy; distract, divert.