1. (a.) Given to industry; characterized by diligence; constantly, regularly, or habitually occupied; busy; assiduous; not slothful or idle; -- commonly implying devotion to lawful and useful labor.

2. (a.) Steadily and perseveringly active in a particular pursuit or aim; as, he was negligent in business, but industrious in pleasure; an industrious mischief maker.

active aggressive ardent assiduous busy conscientious constant continuing diligent dogged dynamic elaborate enduring energetic faithful fervent hard hard-working hardworking hustling immutable inalterable indefatigable indomitable insistent intense invincible laborious lasting live loyal never idle never-tiring obstinate operose painstaking patient patient as Job permanent perseverant persevering persistent persisting pertinacious plodding plugging preoccupied rapt relentless resolute sedulous single-minded sleepless slogging stable steadfast steady strenuous stubborn tenacious thorough thoroughgoing tireless unabating unconquerable undaunted undiscouraged undrooping unfailing unfaltering unflagging unflinching unintermitting uninterrupted unnodding unrelaxing unrelenting unremitting unsleeping unsparing unswerving untiring unwavering unwearied unwearying unwinking utterly attentive vehement vigorous weariless zealous