JLPT N1Written, formalPraise or blame

を顧かえりみずwithout regard for

Someone doesn't stop to think about a risk or a cost. As a rule it is praise when the risk is their own, and blame when others pay.

praise

救きゅう助じょ隊たい員いんは自みずからの安あん全ぜんを顧かえりみず、濁だく流りゅうの中なかへ入はいっていった。

The rescue worker went into the raging water with no thought for their own safety.

blame

企き業ぎょうは利り用よう者しゃへの影えい響きょうを顧かえりみず、サービスを突とつ然ぜん終しゅう了りょうした。

The company abruptly ended the service with no thought for the effect on its users.

How to form it

Noun + を顧みず（に）

も顧かえりみず is common too: 危き険けんも顧かえりみず. Before a noun it is 顧かえりみない: 危き険けんを顧かえりみない行こう動どう.

Before it: What they risk themselves: 危き険けん, 安あん全ぜん, 健けん康こう, 命いのち. Or what others stand to suffer: 家か庭てい, 周しゅう囲いの迷めい惑わく, 影えい響きょう.
Said about: Mostly other people.
Where you'll meet it: News, biographies, tributes, editorials. Mostly one to read: in conversation people say 〜も考かんがえずに, as in 自じ分ぶんの安あん全ぜんも考かんがえずに.

In use

記き者しゃは危き険けんを顧かえりみず、現げん場ばにとどまって取しゅ材ざいを続つづけた。

Heedless of the danger, the reporter stayed at the scene and went on reporting.

医い師しは自じ身しんの健けん康こうを顧かえりみず、被ひ災さい地ちで診しん療りょうを続つづけた。

The doctor went on treating patients in the disaster area with no thought for their own health.

経けい営えい陣じんは長ちょう期き的てきな影えい響きょうを顧かえりみず、目め先さきの利り益えきを優ゆう先せんした。

Management put short-term profit first, with no thought for the long-term effects.

家か庭ていを顧かえりみない

With 家か庭てい or 家か族ぞく it is the set way to say someone neglects their family, usually for work. This one is said in conversation too, and about yourself, with regret.

若わかいころは家か庭ていを顧かえりみず、仕し事ごとばかりしていた。

When I was young I neglected my family and did nothing but work.

Close neighbours

を押して・を押し切ってN1

病びょう気きを押おして: someone goes ahead in spite of their own illness or injury, and is usually respected for it. 反はん対たいを押おし切きって: other people's opposition is overridden.

部ぶ長ちょうは病びょう気きを押おして、重じゅう要ような会かい議ぎに出しゅっ席せきした。

The department head attended the important meeting despite being ill.

をよそにN1

Someone pays no attention to what other people feel: their worry, their protests, their hopes. The writer is usually uneasy or amazed, not admiring.

両りょう親しんの心しん配ぱいをよそに、息子むすこは危き険けんな冬ふゆ山やまへ向むかった。

Paying no heed to his parents' worry, the son headed off into the dangerous winter mountains.

をものともせずN1

Written, and admiring: someone carries on in the face of a real obstacle.

救きゅう助じょ隊たいは激はげしい吹雪ふぶきをものともせず、遭そう難なん者しゃの捜そう索さくを続つづけた。

Undeterred by the fierce blizzard, the rescue team continued searching for those who were missing.

もかまわずN2

Said as well as written, and often critical: someone doesn't care who is watching or what others think.

人ひと目めもかまわず、二人ふたりは駅えきのホームで抱だき合あった。

Not caring who was watching, the two of them hugged on the station platform.

Check yourself

1Which sentence blames him?

Choose an answer to see why.

2What is she saying about her husband?

夫おっとは仕し事ごとばかりで、家か庭ていを顧かえりみない。

Choose an answer to see why.

More detail

省かえりみる, read the same way, is to reflect on your own conduct. It isn't the one written here.

Compared with similar forms

Going ahead in spite of something