List: adjectival nouns or quasi-adjectives (keiyodoshi)

popular  JLPT N1  noun  noun (generic)  noun taking the genitive case particle の  adjective (generic)  な adjective 

• urgency, emergency

popular  JLPT N3  noun  noun (generic)  な adjective  adjective (generic) 

• health
• healthy, sound, fit, wholesome

popular  な adjective  adjective (generic) 

• international, worldwide, cross-border, cosmopolitan

popular  JLPT N3  な adjective  adjective (generic)  noun  noun (generic) 

• chief, main, principal, major

popular  ateji  JLPT N4  な adjective  adjective (generic)  adverb  noun  noun (generic)  noun or participle taking the aux. verb する  transitive verb 

• enough, sufficient, plenty, adequate, satisfactory
• sufficiently, fully, thoroughly, well, perfectly
• division into ten

popular  JLPT N3  な adjective  adjective (generic)  noun  noun (generic) 

• serious, severe, grave, acute

popular  JLPT N3  な adjective  adjective (generic)  noun taking the genitive case particle の  noun  noun (generic) 

• formal, official, regular, proper, legal, due (formalities)

popular  JLPT N1  な adjective  adjective (generic)  noun  noun (generic) 

• normal, regular

popular  obsolete reading  JLPT N5  な adjective  adjective (generic) 

• important, significant, serious, crucial
• precious, valuable, dear, cherished, beloved
• careful

popular  JLPT N5  adverb  な adjective  adjective (generic)  noun  noun (generic)  archaic 

• very, greatly, terribly, awfully
• immense, enormous, great
• serious, grave, dreadful, terrible
• difficult, hard, challenging
• major incident, disaster