Noisome is one word you might like to consider. It's an old term arising from the Old French, annoi (annoy), plus some, and its meaning since the sixteenth century has been "bad-smelling".
"Stale" is predominantly an adjective, but it is also used as an intransitive verb when the subject is some baked product such as bread.
fresh
The antonym of stale is fresh.
Stale is the correct spelling.
The opposite of stale (food, air) would be fresh. The opposite of stale (tired, cliche) would be new, or original.
A noun for damp, stale air is must or mustiness; the adjectives are musty or dank.
No, the word stale is an adjective. The noun form for the adjective stale is staleness.
No, "stale" is not a verb. It is an adjective that describes something old or no longer fresh.
stale, malodorou, stinky, musty, mouldy etc.
"Stale" is predominantly an adjective, but it is also used as an intransitive verb when the subject is some baked product such as bread.
fresh
a musty and stale quality, indicating poor ventilation or air circulation. It may be beneficial to open a window or turn on a fan to improve the air quality.
Skunked beer tastes like a mix of skunk spray and a musty, stale flavor. It is often described as unpleasant and off-putting.
You can determine if olive oil is rancid by smelling it for a musty or stale odor, tasting it for a bitter or unpleasant flavor, and checking for any changes in color or consistency.
Fabric storage boxes may develop a musty or stale odor over time if not properly aired out or cleaned regularly.
stale
What is not fresh or new may be called stale, spoiled, old or decayed. Other terms equally acceptable are malodorous, musty, rank, reeking, smelly, sour, stenchy, stinking