absent, absentminded, absorbed, abstracted, arrested, assiduous, beatific, bemused, bewitched, blissful, buried in thought, bursting with happiness, captivated, carried away, castle-building, caught, charmed, constant, continuing, daydreaming, daydreamy, deep, delighted, diligent, dogged, dreaming, dreamy, drowsing, ecstatic, elate, elated, elsewhere, enchanted, enduring, engaged, engaged in thought, engrossed, engrossed in thought, enraptured, enravished, enthralled, entranced, exalted, exultant, faithful, faraway, fascinated, fixed, flushed, freaked out, gripped, half-awake, happy, held, high, hypnotized, immersed, immersed in thought, immutable, imparadised, in a reverie, in ecstasies, in heaven, in paradise, in raptures, in seventh heaven, in the clouds, inalterable, indefatigable, indomitable, industrious, insistent, introspective, invincible, joyful, joyous, jubilant, lasting, lost, lost in thought, loyal, meditative, mesmerized, mooning, moonraking, museful, musing, napping, never-tiring, nodding, oblivious, obstinate, occupied, on cloud nine, overjoyed, overjoyful, patient, patient as Job, pensive, permanent, perseverant, persevering, persistent, persisting, pertinacious, pipe-dreaming, plodding, plugging, possessed, preoccupied, raptured, rapturous, ravished, relentless, resolute, rhapsodic, sedulous, sent, single-minded, sleepless, slogging, somewhere else, spellbound, stable, stargazing, steadfast, steady, stubborn, taken up, tenacious, tireless, transported, unabating, unconquerable, unconscious, undaunted, undiscouraged, undrooping, unfailing, unfaltering, unflagging, unflinching, unintermitting, uninterrupted, unnodding, unrelaxing, unrelenting, unremitting, unsleeping, unswerving, untiring, unwavering, unwearied, unwearying, unwinking, utterly attentive, weariless, woolgathering, wrapped, wrapped in thought, wrapped up