恥知らず|はじしらずhajishirazu[3]nakadaka (mid-high)

1. na-adjective, nounshameless; shameless person
   彼かれはまったくの恥はじ知しらずだ。↗

   He is dead to all sense of shame.

• Synonym図々しいずうずうしいNeutralThick-skinned and unreserved; the most common everyday word for this, as in 「図々しいお願い」.
• Synonym厚かましいあつかましいNeutralBrazenly thick-skinned, without any reserve, as in 「厚かましいお願い」 or 「厚かましい人」.
• Synonym無恥むちWrittenWritten word for shamelessness; mostly in 「厚顔無恥」, rarely alone.
• SynonymふてぶてしいNeutralUnfazed and defiantly brazen, as in 「ふてぶてしい態度」.
• Synonym臆面もないおくめんもないNeutralSet phrase for acting with no shame at all, as in 「臆面もなく嘘をつく」.
• Synonym厚顔こうがんWrittenWritten/formal word for shamelessness; mostly seen in 「厚顔無恥」, rarely used alone.
• Synonym図太いずぶといNeutralBold and unafraid, as in 「図太い神経」; can read as praise or as criticism.
• Synonym破廉恥はれんちNeutralShameless in a lewd, morally condemnable way, as in 「破廉恥な行為」.
• Synonym鉄面皮てつめんぴWrittenWritten word for an extremely thick skin; strong in tone, as in 「鉄面皮な男」.
• Related無礼ぶれいNeutralDiscourtesy, as in 「無礼者」; about lacking manners rather than lacking shame.
• Related傲慢ごうまんNeutralArrogant and disdainful, as in 「傲慢な態度」; stresses looking down on others.
• Related生意気なまいきNeutralCheeky and self-important, mostly said of the young, as in 「生意気な口をきく」.
• Related傍若無人ぼうじゃくぶじんNeutralFour-character idiom for acting as if no one were around, ignoring everyone present.
• Related不埒ふらちNeutralOutrageous and rule-breaking rather than simply shameless, as in 「不埒な輩」; somewhat old-fashioned.
• Related不躾ぶしつけNeutralRude and presumptuous; about bad manners, as in 「不躾な質問」, not necessarily shamelessness.
• Related無遠慮ぶえんりょNeutralUnreserved and blunt, as in 「無遠慮な発言」; stresses speaking without restraint.
• Related僭越せんえつNeutralOverstepping one's proper station, as in 「僭越ながら」; often used as a humble opener.
• Related白々しいしらじらしいNeutralFeigning ignorance of what one clearly knows, as in 「白々しい嘘」; stresses insincerity rather than boldness.
• RelatedいけずうずうしいCasualColloquial emphatic form of 「図々しい」 with a disgusted edge; harsher as an insult.
• Related厚皮あつかわWrittenWritten word for a thick skin; rare — in daily speech say 「厚かましい」.
• RelatedこしゃくNeutralImpudently clever in an annoying way, as in 「小癪な真似を」; contemptuous.
• Antonym恥ずかしがりNeutralEasily embarrassed; the opposite of the unashamed 「恥知らず」.

Use 「恥知らず」 for a shameless person or act, as in 「この恥知らず！」. For thick-skinned boldness pick 「図々しい」 or 「厚かましい」; for lewd, morally condemnable behavior pick 「破廉恥」. Other words narrow the sense: bad manners (「不躾」「無礼」), bluntness (「無遠慮」), arrogance (「傲慢」「生意気」), or written terms like 「厚顔」「無恥」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 恥はずべき行為こういを平気へいきですること。また、その人ひとやそのさま。