buoyant /'boiant; 'boisnt/ adj able to float or to keep things floating; (fig) light-hearted: 能漂浮的; 有浮力的; (喻) 心情愉快的; 快活的: a ~ disposition; 樂(lè)天的性情; springy: 有彈性的: with a ~ step; 一躍; (of the stock market, etc) maintaining high prices. (指股票市場(chǎng)等) 維持高價(jià)的; 盤(pán)高的。 ~ly adv