はしたない・端たないhashitanai

1. i-adjectiveimproper; immodest; disgraceful; shameful; vulgar; low

• Synonym下品げひんNeutralThe everyday word for vulgarity and a lack of breeding, and it can also describe poor quality; 「端たない」 is about conduct that falls short of decorum.
• Synonym粗野そやNeutralPoints to rough, rude speech and behaviour, stressing a lack of polish; 「端たない」 is about rudeness and a failure of the restraint expected of a person.
• Synonym野卑やひWrittenDescribes coarse, rude speech and behaviour; it belongs to written or formal prose, and in daily talk 「下品」 is the usual choice. 「端たない」 stresses the loss of decorum.
• Synonym卑俗ひぞくWrittenMeans base and lacking in refinement, and is mostly found in written or formal prose; everyday speech prefers 「下品」. 「端たない」 is about improper conduct.
• RelatedいやらしいNeutralCovers anything unpleasant or disagreeable, and also lewdness and sexual explicitness; 「端たない」 is about words and behaviour that fall short of etiquette and decorum.
• Related低俗ていぞくWrittenJudges content, spirit or taste as lowbrow and vulgar, as in 「低俗な番組」; it is written or formal prose. 「端たない」 is about personal decorum.
• Related卑猥ひわいNeutralApplies to speech and conduct that are sexually lewd or obscene; 「端たない」 centres on rudeness and impropriety and is not limited to sexual matters.
• Related淫らみだらNeutralSuggests sexual wantonness, a lack of restraint, as in 「淫らな行為」; 「端たない」 does not necessarily involve sexual behaviour.
• RelatedわいせつNeutralRefers to sexual obscenity and also appears in legal usage; 「端たない」 is a general term for rudeness and impropriety, with no necessary sexual sense.
• Related下劣げれつNeutralDescribes a person's character as base and mean, and can also cover lewd conduct; 「端たない」 looks more at behaviour that breaches etiquette and decorum.
• Related俗悪ぞくあくWrittenCriticizes content or taste as vulgar and tacky, mainly in written or formal prose; everyday speech uses 「下品」. 「端たない」 is about rude conduct.
• Related浅ましいあさましいNeutralCondemns a base, contemptible character and can also mean pitiable; 「端たない」 focuses on a lack of restraint and improper behaviour.
• Related低級ていきゅうNeutralRates degree, quality or rank as low, and can also describe vulgar jokes; 「端たない」 is about words and behaviour that are improper.
• Related低劣ていれつWrittenDescribes ability, standing or quality as inferior, and is written or formal prose; 「端たない」 is about conduct lacking etiquette and decorum.

For conduct that breaches etiquette or costs you your dignity, 「はしたない」 is the default, as in 「はしたない真似」. For vulgarity in general use 「下品」; for sexual lewdness pick 「いやらしい」, 「卑猥」, 「淫ら」 or 「猥褻」. 「野卑」, 「卑俗」, 「低俗」, 「俗悪」 and 「低劣」 are written or formal prose; 「粗野」, 「下劣」, 「浅ましい」 and 「低級」 judge character, roughness or quality, not decorum.

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

1. 礼儀れいぎに外はずれていて品しなが無ない。下品げひんだ。
2. （不着ふちゃく落おちい・依違ちがい）寄る辺よるべない。どっちつかず。
3. （無む藉せき在ありい）間かんが悪わるい。
4. （困殺い）不都合ふつごうだ。浅あさましい。
5. （無情むじょうい）愛想あいそが無ない。つれない。情なさけない。