expression, adverb
indiscriminately; without distinction
Used adverbially to describe acting without regard to differences, often in a negative or reckless manner. Common in phrases like 見境なく～する.
彼は見境なくお金を使う。
He spends money indiscriminately.
見境なく人を信じてはいけない。
You shouldn't trust people without distinction.
無差別 is a noun/adjective meaning 'indiscriminate' or 'without discrimination', often used in formal contexts (e.g., 無差別攻撃). 見境なく is more colloquial and adverbial, emphasizing reckless lack of judgment.
From 見境 (discernment, distinction) + なく (adverbial form of ない, 'without'). Literally 'without discernment'.