List: adjectival nouns or quasi-adjectives (keiyodoshi)

JLPT N3  archaic  な adjective  adjective (generic) 

• straight
• ordinary, common
• doing nothing

yojijukugo  な adjective  adjective (generic)  noun  noun (generic) 

• impulsive and straightforward, guileless

な adjective  adjective (generic)  noun  noun (generic) 

• direct, frank, straightforward, plain
• decisive, prompt

な adjective  adjective (generic)  noun  noun (generic) 

• strange, rare, novel, curious

な adjective  adjective (generic) 

• analgesic

な adjective  adjective (generic)  noun  noun (generic) 

• low-grade, low-class, low-quality, vulgar, cheap

な adjective  adjective (generic)  noun  noun (generic) 

• low and damp

irregular kanji usage  noun  noun (generic)  な adjective  adjective (generic) 

• low intelligence, low IQ, feeble-mindedness, imbecility
• unintelligent person, person with a low IQ

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

• lowish, somewhat low, on the low side, low (ball)

な adjective  adjective (generic)  noun  noun (generic) 

• low grade, inferiority, coarseness, vulgarity