economical /Jrkd'nomikl US:, ek-; Jkd'namikl/ adj careful in the spending of money, time, etc and in the use of goods; not wasteful: 經(jīng)濟的; 節(jié)儉的： to be ~ of time and energy; 節(jié)省時簡和南 W; an ~ fire, one that does not waste fuel. 省燃料的真火 o —ly /-kh; -kh/ adv