occupied, active, engaged, at work, hard at it, on the go, tied up, bustling, busy as a bee, on the hop, tireless, working, employed, industrious, lively, on the job, on the move, time-poor, assiduous, diligent, energetic, engrossed, hard at work, hard-pressed, hardworking, hard-working, have one's hands full, rushed off your feet, sedulous, tied-up, at it, busy as a beaver, efficient, harried, having a full plate, having...