noun, noun or participle which takes 'suru'
cold stare; cold-hearted attitude
Describes looking at someone with coldness or taking a detached, unsympathetic stance. Often used with する to mean 'to give a cold look' or 'to treat coldly'.
彼は私を冷視した。
He gave me a cold stare.
冷視する態度は人を傷つける。
A cold-hearted attitude hurts people.
冷たい視線 is a more common, everyday phrase for a cold look, while 冷視 is a more formal, literary noun/suru-verb.
冷遇 means 'cold treatment' or 'neglect' in a broader sense, often in social or professional contexts, while 冷視 focuses specifically on the act of looking coldly or taking a cold-hearted attitude.
Compound of 冷 (cold) and 視 (look, regard). The exact historical derivation is uncertain, but the meaning is transparent from its components.