ざあざあ
pouring; heavily; sound of heavy rain or rushing water
→ It is pouring rain.
ばらばら
separately; scattered; in pieces; each going their own way
→ We parted at the station and each went home separately.
わいわい
noisily; cheerfully; with lively chatter
→ Everyone is chatting noisily and cheerfully at the izakaya.
にこにこ にっこり笑う
smile cheerfully; smile brightly
→ The staff member welcomed me with a warm smile.
じっと見る
stare intently; look fixedly
→ I was staring intently at my smartphone screen on the train.
じろじろ見る
stare rudely; look someone up and down
→ It is rude to stare at people.
ぶつぶつ話す
mutter; mumble; grumble to oneself
→ My father is muttering while watching TV.
ひそひそ話す
whisper; talk in low voices
→ The two of them are whispering in the hallway.
ぺらぺら話す
speak fluently
→ She speaks Japanese fluently.
ぺこぺこ
very hungry; starving
→ I haven't eaten anything since this morning, so I'm starving.
ごくごく飲む
gulp down; drink in big gulps
→ It was hot, so I gulped down the water.
はっきり
clearly; distinctly; definitely
→ Please state your opinion clearly.
すっかり
completely; entirely; totally
→ I've completely gotten used to life in Tokyo.
しっかり
firmly; securely; properly; carefully
→ Please lock the door securely.
きちんと
properly; neatly; correctly
→ I will go to the interview dressed properly.
ちゃんと
properly; correctly; as one should
→ Please take your medicine properly every day.
うっかり
carelessly; accidentally; absentmindedly
→ I accidentally left my umbrella on the train.
ますます
more and more; increasingly
→ Studying Japanese has become more and more enjoyable.
だんだん
gradually; little by little
→ I am gradually getting used to life in Japan.
どんどん
rapidly; steadily; one after another
→ New buildings are going up one after another in front of the station.