List: adjectival nouns or quasi-adjectives (keiyodoshi)

popular  usually written using kana alone  suffix  な adjective  adjective (generic) 

• does not seem, unlikely, improbable

popular  abbreviation  な adjective  adjective (generic)  prefix 

• ecological, eco-

popular  noun  noun (generic)  な adjective  adjective (generic) 

• paper (in rock-paper-scissors)
• disappearing completely, coming to nought, becoming worthless, losing everything
• foolishness, stupidity

popular  な adjective  adjective (generic) 

• overall, general, as a whole

popular  gikun or jukujikun  JLPT N5  usually written using kana alone  adverb  な adjective  adjective (generic) 

• how, in what way, how about
• questionable

popular  な adjective  adjective (generic) 

• future, possible, potential, prospective

popular  onomatopoeic or mimetic word  adverb  adverb taking the と particle  noun or participle taking the aux. verb する  verb (generic)  noun (generic)  な adjective  adjective (generic) 

• tediously, persistently, repeatedly, at length
• lazily, idly, slovenly, sluggishly
• (boiling) to a pulp, to a mash, to a mush

popular  onomatopoeic or mimetic word  adverb  adverb taking the と particle  noun or participle taking the aux. verb する  verb (generic)  noun (generic)  noun taking the genitive case particle の  adjective (generic)  な adjective 

• rattling, clattering
• trembling, shivering, quaking, wobbling, swaying
• whining, grumbling, griping, bellyaching
• rickety, shaky, wobbly, decrepit, ramshackle, broken down

popular  JLPT N2  polite language  expression  な adjective  adjective (generic) 

• thank you (for your hard work), I appreciate your efforts

popular  onomatopoeic or mimetic word  adverb  adverb taking the と particle  noun or participle taking the aux. verb する  verb (generic)  noun (generic)  noun taking the genitive case particle の  adjective (generic)  な adjective 

• rough (touch, voice, etc.), coarse, gritty, sandy, granular
• rattling (of beans, beads, etc.)