questEnglishOxford American Thesaurusquest noun 1 nothing will stop their quest for her killer: search, hunt, pursuit; pursuance of, investigation into. 2 Sir Galahad was nearing the end of his quest: expedition, adventure, journey, voyage, trek, travels, odyssey, wandering, journeying, exploration, venture, search, undertaking; crusade, mission, pilgrimage, errand; rare peregrination. □ in quest ofosprey dive into the river in quest of fish: searching for, after, seeking, looking for, on the lookout for, in search of, in pursuit of, chasing after.verb literary his eyes quested to left and right: search, seek, look, hunt, pursue, investigate, explore, probe, inspect.