| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | engaged, at work |
| Synonyms: | active, already taken, assiduous, at it, buried, diligent, employed, engaged, engrossed, having a full plate, having enough on one's plate, having fish to fry, having many irons in the fire, hustling, in a meeting, in conference, in someone else's possession, in the field, in the laboratory, industrious, occupied, on assignment, on duty, on the go, overloaded, persevering, slaving, snowed, swamped, tied up, unavailable, up to one's ears, with a customer, working |
| Antonyms: | idle, quiet, unbusy, unemployed, unengaged |
| Main Entry: | spry |
| Part of Speech: | adjective |
| Definition: | active, vivacious |
| Synonyms: | agile, alert, brisk, energetic, fleet, full of pep, healthy, in full swing, lithe, nimble, on the go, prompt, quick, quick on the draw, ready, robust, rocking, sound, spirited, sprightly, supple, vigorous |
| Antonyms: | inactive, lethargic, old, unaware, unenergetic |
| Main Entry: | tireless |
| Part of Speech: | adjective |
| Definition: | determined |
| Synonyms: | active, ball of fire, eager, energetic, enthusiastic, grind, hard-working, hyper, incessant, indefatigable, industrious, jumping, on the go, perky, persevering, resolute, steadfast, strenuous, unflagging, untiring, unwearied, unwearying, vigorous |
| Antonyms: | beat, tired, unenthusiastic, weary, worn out |
| Main Entry: | unwearied |
| Part of Speech: | adjective |
| Definition: | tireless |
| Synonyms: | active, ball of fire, eager, energetic, enthusiastic, grind*, hard-working*, hyper*, incessant, indefatigable, industrious, inexhaustible, jumping, on the go, perky, persevering, resolute, steadfast, strenuous, unfailing, unflagging, untiring, unwearying, vigorous, weariless |
| Main Entry: | weariless |
| Part of Speech: | adjective |
| Definition: | tireless |
| Synonyms: | active, ball of fire, eager, energetic, enthusiastic, grind*, hard-working*, hyper*, incessant, indefatigable, industrious, inexhaustible, jumping, on the go, perky, persevering, resolute, steadfast, strenuous, unfailing, unflagging, untiring, unwearied, unwearying, vigorous |