Making a decision based solely on one's own judgment without consulting others; an arbitrary/unilateral decision (often used negatively).
上司の独断でプロジェクトが中止になった。
The project was canceled by the boss's unilateral decision.
独断で行動するとチームに迷惑がかかる。
Acting arbitrarily causes trouble for the team.
その判決は独断的だと批判された。
The ruling was criticized as being arbitrary.
Dogmatism — a rigid adherence to beliefs or doctrines and the imposition of one's own views as indisputable truth.
彼の議論は独断に満ちていて議論が進まなかった。
His argument was full of dogmatism and the discussion couldn't progress.
独断的な考え方は組織の改革を阻むことがある。
Dogmatic thinking can sometimes hinder organizational reform.
彼女は独断に陥らないように他人の意見をよく聞くようにしている。
She makes a point of listening to others so as not to fall into dogmatism.