感かん謝しゃ知しらず

noun which may take the genitive case particle 'no', noun

ungrateful; unappreciative

Describes a person or attitude that does not show gratitude for kindness or help received. Often used in phrases like 感謝知らずな人 or 感謝知らずの態度.

• 彼かれはいつも感かん謝しゃ知しらずで、誰だれかが手伝てつだってもお礼れいを言いわない。

  He is always ungrateful and never says thank you even when someone helps him.

• そんな感かん謝しゃ知しらずな態たい度どは周まわりの人ひとを傷きずつけるよ。

  That kind of ungrateful attitude hurts the people around you.