flier

1 a risky undertaking willing to take a flier on the bold, new venture Synonyms adventure, chance, crapshoot, enterprise, gamble (also flyer), flutter [chiefly British], speculation, throw, ventureRelated Words bet, hazard, stake, wager; liberty; dark horse, long shot, playAntonyms sure thing

2 one who flies or is qualified to fly an aircraft or spacecraft a hot-air balloon flier Synonyms airman, aviator, birdman, pilot (also flyer)Related Words ace, barnstormer, bush pilot, copilot, flyboy, test pilot; captain, skipper