musty
AdjectiveWordNet 3.0
Webster's Dictionary (GCIDE)
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. [1913 Webster]
2.Spoiled by age; rank; stale. [1913 Webster]
The proverb is somewhat musty.— Shak.[1913 Webster]
3.Dull; heavy; spiritless. "That he may not grow musty and unfit for conversation." --Addison. [1913 Webster]