discouraging
adj. 使人沮丧的；令人气馁的
v. 沮丧（discourage 的 ing 形式）；失去勇气
例句
Experts have long recognized that this discouraging problem has multiple causes.
专家们早就认识到，这个令人沮丧的问题是由多种原因造成的。
Her criticisms had the effect of discouraging him completely.
她的批评使他完全丧失了信心。
《牛津词典》
Gas prices are discouraging small car owners from trading up to SUV's.
汽油的价格使得小车车主不敢卖掉小车购买运动型多用途汽车。
《柯林斯英汉双解大词典》
