n fashion, interest, preference, enthusiasm, etc that is not likely to last 流行的时尚、爱好、狂热等
*Will Tom continue to collect stamps or is it only a passing fad? 汤姆还在集邮呢, 还是热劲已过?
[Date: 1800-1900; Origin: Perhaps from fiddle-faddle]
something that people like or do for a short time, or that is fashionable for a short time
Interest in organic food is not a fad, it's here to stay.