musty

Used is a related term of musty.

As adjectives the difference between used and musty

is that used is that is or has or have been used while musty is having a stale odor.

As a verb used

is (use).

Conventional is a related term of musty.

As adjectives the difference between conventional and musty

is that conventional is pertaining to a convention, as in following generally accepted principles, methods and behaviour while musty is having a stale odor.

As a noun conventional

is (finance) a conventional gilt-edged security, a kind of bond paying the holder a fixed cash payment (or coupon) every six months until maturity, at which point the holder receives the final payment and the return of the principal.

Veteran is a related term of musty.

As a noun veteran

is veteran.

As an adjective musty is

having a stale odor.

Musty is a related term of extinct.

As adjectives the difference between musty and extinct

is that musty is having a stale odor while extinct is (dated) extinguished, no longer alight (of fire, candles etc).

As adjectives the difference between venerable and musty

is that venerable is commanding respect because of age, dignity, character or position while musty is having a stale odor.

Impromtu is likely misspelled.

Impromtu has no English definition.

As an adjective musty is

having a stale odor.

Musty is a synonym of damp.

As an adjective musty

is having a stale odor.

As a noun damp is

steam.

As adjectives the difference between musty and cacophonous

is that musty is having a stale odor while cacophonous is containing, consisting of, or producing harsh, unpleasant or discordant sounds.

As adjectives the difference between pungent and musty

is that pungent is having a strong odor that stings the nose, said especially of acidic or spicy substances while musty is having a stale odor.

As adjectives the difference between molten and musty

is that molten is melted while musty is having a stale odor.

As a verb molten

is past participle of lang=en.