List: adjectival nouns or quasi-adjectives (keiyodoshi)

な adjective  adjective (generic) 

• curiosity-seeking
• bizarre (crime, etc.), grotesque, abnormal

な adjective  adjective (generic) 

• demonstrative

colloquial  noun  noun (generic)  な adjective  adjective (generic) 

• downer (dispiriting person or thing), killjoy, gloomy feeling
• downer (drug; esp. a barbiturate), depressant

な adjective  adjective (generic) 

• contemplative, meditative, meditational

physics  な adjective  adjective (generic) 

• incoherent

な adjective  adjective (generic) 

• discursive (i.e. proceeding by argument or reasoning rather than intuition)

な adjective  adjective (generic)  noun  noun (generic) 

• highest honours, highest distinction, summa cum laude

な adjective  adjective (generic) 

• sincere, faithful, honest

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

• eccentric, queer, unconventional, peculiar, bizarre, strange, odd

な adjective  adjective (generic) 

• soulful (esp. of music), having a lot of soul