List: adjectival nouns or quasi-adjectives (keiyodoshi)

rarely used kanji form  usually written using kana alone  noun  noun (generic)  な adjective  adjective (generic) 

• without preparation, off the cuff, abrupt, without warning
• unreserved, without restraint, frank, blunt, direct
• beginning, start, outset

な adjective  adjective (generic) 

• geometrical

な adjective  adjective (generic) 

• distinctive, characteristic

な adjective  adjective (generic) 

• elementary, basic, rudimentary

な adjective  adjective (generic) 

• periodic, cyclic, cyclical

な adjective  adjective (generic) 

• economic, financial, fiscal

noun  noun (generic)  な adjective  adjective (generic) 

• upside down

な adjective  adjective (generic) 

• at the point of death, almost dead, about to die
• at some limit (pain, hunger, etc.)

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

• aesthetic sense in Japanese art emphasising quiet simplicity and subdued refinement

な adjective  adjective (generic) 

• sustainable