鈍感

(1)blunted in responsiveness or sensibility; "a dull gaze"; "so exhausted she was dull to what went on about her"- Willa Cather

(2)反応または感受性が鈍くされる

(3)unaware of or indifferent to; "insensible to the suffering around him"

(4)気付かないまたは無関心な

(1)