List: adverb (fukushi)

onomatopoeic or mimetic word  adverb  adverb taking the と particle 

• with a creak, with a squeak
• (packing) tightly, with a squeeze
• relentlessly (criticize, complain, etc.), severely

expression  adverb 

• for the first time in one's life

adverb 

• without advance notice

expression  adverb 

• at very frequent intervals, almost every other day, constantly

onomatopoeic or mimetic word  colloquial  adverb  adverb taking the と particle 

• a lot, a great deal, plentifully
• properly, sufficiently, fully

search-only kanji form  expression  adverb 

• before anything else, first of all

search-only kanji form  colloquial  adverb 

• inadvertently, for no special reason
• truthfully, unexpectedly
• after realizing, without knowing

onomatopoeic or mimetic word  adverb  noun or participle taking the aux. verb する  verb (generic)  noun (generic) 

• absentmindedly, dazedly, vaguely

usually written using kana alone  interjection  adverb 

• what?!, what did you say?!
• why?, what for?, for what reason?
• anyone, anything

adverb  expression 

• calmly, quietly, gently, peacefully
• be quiet!