List: adjectival nouns or quasi-adjectives (keiyodoshi)

slang  な adjective  adjective (generic) 

• ugly and creepy (combination of the words busaiku and kimoi)

な adjective  adjective (generic) 

• supernatural (e.g. psychic phenomena and such), paranormal

な adjective  adjective (generic)  noun taking the genitive case particle の  noun  noun (generic) 

• unexpected, surprising

usually written using kana alone  な adjective  adjective (generic) 

• sorry, apologetic, remorseful

な adjective  adjective (generic) 

• ambiguous, polysemous, equivocal, having many meanings

な adjective  adjective (generic) 

• very careless, quite thoughtless

rare term  な adjective  adjective (generic) 

• cold-hearted, merciless, ruthless

rare term  noun  noun (generic)  な adjective  adjective (generic) 

• to the satisfaction of all parties, all sides being happy and satisfied

noun  noun (generic)  な adjective  adjective (generic)  noun taking the genitive case particle の 

• exceptionally effective, overwhelming effectiveness

な adjective  adjective (generic)  noun taking the genitive case particle の 

• most important