expression, i-adjective
unaffected; indifferent; impervious
Used when someone is completely untroubled by criticism, hardship, or an event that would normally bother others. Often in negative contexts: 痛痒を感じない様子, 痛痒を感じていない.
彼は周りの批判に痛痒を感じないようだ。
He seems completely unaffected by the criticism around him.
A slight price increase probably won't affect this company at all.