slight; disrespect; neglect; making light of
Used to describe treating someone or something as unimportant, often in the phrase ないがしろにする.
彼はいつも私の意見をないがしろにする。
He always makes light of my opinions.
You must not neglect safety measures.
Usually written in kana; the kanji form 蔑ろ is rare.
Rare kanji spelling; the kana form is strongly preferred.
The origin is uncertain, but it may be related to the classical Japanese adjective なし (無し, 'not exist') and the noun がしろ, possibly from かしら (頭, 'head') or かしろ (place). The exact derivation is unclear.