noun
self-will; obstinacy
Refers to stubbornly insisting on one's own way or opinion, often with a negative connotation. Somewhat literary or formal; in casual speech わがまま is more common.
彼は我意を通そうとして、周囲と衝突した。
He tried to have his own way and clashed with those around him.
我意を張ると、協力が難しくなる。
If you insist on your own will, cooperation becomes difficult.