adj. 发霉的；落伍的；冷淡的 (musty的变形)

Musty \Mus"ty\, a. [Compar. {Mustier}; superl. {Mustiest}.]
[From L. mustum must; or perh. fr. E. moist. Cf. {Must}, n.,
{Moist}.]
1. Having the rank, pungent, offensive odor and taste which
substances of organic origin acquire during warm, moist
weather; foul or sour and fetid; moldy; as, musty corn;
musty books. --Harvey.

2. Spoiled by age; rank; stale.

The proverb is somewhat musty. --Shak.

3. Dull; heavy; spiritless. ``That he may not grow musty and
unfit for conversation.'' --Addison.