| Open-eyed (a.) With eyes widely open; watchful; vigilant. Thesaurus Entries agog, alert, all ears, all eyes, assiduous, attentive, aware, careful, concentrated, conscious, diligent, earnest, finical, finicking, finicky, heedful, intense, intent, intentive, meticulous, mindful, nice, niggling, observant, observing, on the ball, on the job, open-eared, open-eyed, openmouthed, regardful, watchful |