List of diligent synonyms and diligent related words.
academic, advertent, agog, alert, all ears, all eyes, ardent, assiduous, attentive, aware, bookish, careful, concentrated, conscientious, conscious, constant, continuing, devoted to studies, dogged, donnish, dryasdust, earnest, elaborate, enduring, energetic, faithful, fervent, finical, finicking, finicky, hard, hard-working, hardworking, heedful, immutable, inalterable, indefatigable, indomitable, industrious, insistent, intense, intent, intentive, invincible, laborious, lasting, loyal, mandarin, meticulous, mindful, never idle, never-tiring, nice, niggling, observant, observing, obstinate, on the ball, on the job, open-eared, open-eyed, openmouthed, operose, owlish, painstaking, patient, patient as Job, pedantic, permanent, perseverant, persevering, persistent, persisting, pertinacious, plodding, plugging, preoccupied, professorial, punctilious, rabbinic, rapt, regardful, relentless, resolute, scholarly, scholastic, scrupulous, sedulous, single-minded, sleepless, slogging, stable, steadfast, steady, strenuous, stubborn, studious, 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, watchful, weariless, zealous