Having undergone decay, rotted.
Affected by dampness or mould; damp, mildewed, mouldy.
Characteristic of or relating to mould or mouldiness.
Of attitudes, ideas, writing, or other abstract things: no longer fresh or interesting; outdated, stale.
Having an odour or taste of mould; also (generally), having a stale or unfresh odour or taste.
Of a person: boring and unadventurous; also, old-fashioned, stuck in the past.
Bad-tempered, grumpy, irritable.
Of a male animal such as a camel or an elephant: in musth.