industriousa.[L. industrius, industriosus: cf. F. industrieux. See Industry.]()1. 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.()Frugal and industrious men are commonly friendly to the established government. (Sir W. Temple.)2. Steadily and perseveringly active in a particular pursuit or aim; as, he was negligent in business, but industrious in pleasure; an industrious mischief maker.()Industrious to seek out the truth of all things. (Spenser.)()