Depends on the context and meaning of the word. I think polar and Polish are two possibilities.
what is the adjectival form of loudly
Memorable is the adjectival form of memory eg: It was a memorable movie.
Exudative is the medical adjectival form of the word exudate.
The adjectival form of "larynx" is "laryngeal." It is used to describe things related to or involving the larynx.
The adjective form is axillary!!!!!
Johannine
flexible
memorize
loudly
Athletic.
phalangeal
Able.