List: adjectival nouns or quasi-adjectives (keiyodoshi)

popular  irregular okurigana  JLPT N3  な adjective  adjective (generic)  suffix 

• abundant, plentiful, rich, ample
• rich, wealthy, affluent, well-off
• open (mind), relaxed, easy
• plump (e.g. breasts), full, ample
• (well) over, (easily) in excess of

popular  search-only kana form  search-only kanji form  JLPT N5  noun  noun (generic)  noun taking the genitive case particle の  adjective (generic)  な adjective 

• truth, reality, actuality, fact
• proper, right, correct, official
• genuine, authentic, real, natural, veritable

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

• honor, honour, credit, glory, fame, distinction
• prestige, dignity, reputation, honor, good name
• honorary (e.g. president, doctorate)

popular  JLPT N3  な adjective  adjective (generic) 

• clear, precise, definite, distinct

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

• valid, effective
• yuko (judo)

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

• influential, prominent
• strong, likely, plausible, potent

popular  irregular okurigana  JLPT N4  な adjective  adjective (generic)  noun  noun (generic)  adverb 

• sure, certain, positive, definite
• reliable, trustworthy, safe, sound, firm, accurate, correct, exact
• If I'm not mistaken, If I remember correctly, If I remember rightly

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

• doomed (business, trade, etc.), in a bad state, poor

popular  rarely used kanji form  JLPT N1  な adjective  adjective (generic)  noun  noun (generic) 

• lively, active, vigorous, animated, brisk

popular  JLPT N4  な adjective  adjective (generic)  noun  noun (generic) 

• sudden, abrupt, unexpected
• urgent, pressing
• steep, sharp, precipitous
• rapid, swift, fast
• emergency, crisis, danger
• urgency, hurrying, haste
• (in gagaku or noh) end of a song