決め込む
Meanings
Godan verb
Transitive verb
1. to take for granted; to assume; to be convinced (that); to jump to the conclusion (that)
2. to pretend (to be); to pose (as); to fancy oneself (to be); to feign (e.g. ignorance)
3. to go through with (what one decided to do); to persist in doing; to make up one's mind
Other spellings
決めこむ決込む極め込む
Kanji used
Kanji in other spellings
Pitch accent
きめこむ
Examples2
私
I decided to bide my time and wait for the argument to finish.
本人
He's completely convinced of his own greatness but to the people around him he's just a selfish jerk.