Mouldy is a related term of frowsty.
As adjectives the difference between mouldy and frowsty
is that mouldy is covered with mould while frowsty is (uk) musty; stuffy (atmosphere).
mouldy
English
Alternative forms
* moldy (US)
Adjective
(en-adj)
Covered with mould.
Neglected.
Synonyms
* (covered with mould): rotten
* (neglected): disused, neglected
Related terms
* mould
frowsty
English
Adjective
(er)
(UK) musty; stuffy (atmosphere)