忘れられない

わすれられない

unforgettable, memorable, haunting, indelible

忘れな草

わすれなぐさ ワスレナグサ

forget-me-not (esp. the water forget-me-not, Myosotis scorpioides)

流し忘れ

ながしわすれ

forgetting to flush (the toilet)

忘れ霜

わすれじも

late frost, frost in late spring

面忘れ

おもわすれ

failure to recognize someone, failure to recognise someone

忘れ物

わすれもの

lost article, something forgotten

物忘れ

ものわすれ

forgetfulness

都忘れ

みやこわすれ

Miyamayomena savateri, Gymnaster savatieri

忘れ草

わすれぐさ

Hemerocallis fulva var. kwanso (variety of daylily)

胴忘れ

どうわすれ

lapse of memory, forgetting for a moment something one knows well, (something) slipping one's mind

忘れる

わすれる

to forget, to leave carelessly, to be forgetful of, to forget about, to forget (an article)

ど忘れ

どわすれ

lapse of memory, forgetting for a moment something one knows well, (something) slipping one's mind

忘れ扇

わすれおうぎ

discarded fan (in autumn), forgotten fan

年忘れ

としわすれ

forgetting the hardships of the old year

忘れ緒

わすれお

decorative gauze strap that hangs from the front left side of the kohimo when tying closed one's hanpi

忘れ花

わすればな

late bloomer; flower blooming after its usual season (esp. in winter)

忘れがたい

わすれがたい

unforgettable, memorable

言い忘れる

いいわすれる

to forget to say, to forget to mention

忘れっぽい

わすれっぽい

forgetful