Antonyms of adj overbusy

1 sense of overbusy

Sense 1
overbusy -- (too busy)

INDIRECT (VIA busy) -> idle -- (not in action or at work; "an idle laborer"; "idle drifters"; "the idle rich"; "an idle mind")

Similarity of adj overbusy

1 sense of overbusy

Sense 1
overbusy -- (too busy)
       => busy (vs. idle) -- (actively or fully engaged or occupied; "busy with her work"; "a busy man"; "too busy to eat lunch")