noun, noun or participle which takes 'suru', intransitive verb
attachment; fixation; obsession; clinging
Describes a strong emotional or mental attachment to something, often with a negative nuance of being unable to let go. Commonly used with ～する to mean 'to be attached/obsessed'.
彼は昔のやり方に執着している。
He clings to the old ways.
お金に執着しすぎると、人生がつまらなくなる。
If you become too obsessed with money, life becomes dull.
彼女は過去の失敗に執着して、前に進めないでいる。
She is fixated on her past mistakes and can't move forward.