noun
self-centeredness; selfishness; egoism
Describes an attitude of putting one's own interests first, often used in formal or critical contexts.
彼の自家本位な態度にはうんざりする。
I'm fed up with his self-centered attitude.
自家本位の考え方では、チームワークは成り立たない。
Teamwork cannot work with a selfish way of thinking.
Compound of 自家 (じか, 'self; one's own') and 本位 (ほんい, 'standard; basis'), literally meaning 'self as the standard'. The exact historical derivation is uncertain, but the term follows a common Sino-Japanese compounding pattern.