List: Core Japanese words

Wordpopular  search-only kana form  rarely used kanji form  JLPT N5  usually written using kana alone  conjunction 

• however, but

Wordpopular  rarely used kanji form  JLPT N5  usually written using kana alone  adverb 

• very, awfully, exceedingly
• (not) at all, by no means, simply (cannot)

Wordpopular  irregular kanji usage  JLPT N5  い adjective  adjective (generic) 

• enjoyable, fun, pleasant, happy, delightful

Wordpopular  JLPT N4  usually written using kana alone  い adjective  adjective (generic)  colloquial  adverb 

• terrible, dreadful
• amazing (e.g. of strength), great (e.g. of skills), wonderful, terrific
• to a great extent, vast (in numbers)
• awfully, very, immensely

Wordpopular  JLPT N5  な adjective  adjective (generic)  adverb  colloquial  interjection  archaic  noun  noun (generic) 

• safe, secure, sound, problem-free, without fear, all right, alright, OK, okay
• certainly, surely, undoubtedly
• no thanks, I'm good, that's alright
• great man, fine figure of a man

Wordpopular  JLPT N5  usually written using kana alone  い adjective  adjective (generic) 

• bad (taste), unpalatable, unsavoury, unsavory, awful, terrible, unpleasant
• poor, unskillful, unskilful, bungling, clumsy
• ugly, unattractive, homely, plain
• awkward, problematic, troublesome, unfavorable, unfavourable, unwise

Wordpopular  JLPT N5  usually written using kana alone  い adjective  adjective (generic) 

• good(-tasting), nice, delicious, tasty
• attractive (offer, opportunity, etc.), appealing, convenient, favorable, desirable, profitable

Wordpopular  rarely used kanji form  JLPT N3  usually written using kana alone  い adjective  adjective (generic) 

• skillful, skilful, skilled, good, expert, clever (expression, trick, etc.), apt, appropriate
• delicious, tasty, good, nice
• good (deal, idea, etc.), profitable, promising, lucky, fortunate, successful, satisfactory, splendid

Wordpopular  obsolete kanji  JLPT N4  な adjective  adjective (generic)  noun  noun (generic) 

• simple, easy, uncomplicated
• brief, quick, light

Wordpopular  ateji  obsolete kanji  JLPT N5  い adjective  adjective (generic)  euphemistic  archaic 

• difficult, hard, troublesome, complicated, serious (disease, problem, etc.)
• impossible, unfeasible
• fussy, particular, fastidious, hard to please, displeased
• gloomy, glum, sullen, serious (look)
• dirty, unclean, filthy, detestable
• unpleasant, uncomfortable, creepy, spooky