Usage patterns
〈事〉に恣意が入るfor arbitrariness to creep into (a decision, judgment, etc.)
This standard is prone to arbitrary judgment.
恣意を排除するto eliminate arbitrariness
To eliminate arbitrariness in the review, clear criteria were established.
〈人〉の恣意で〈動詞〉by someone's arbitrary decision, ...
Personnel decisions were made at the president's arbitrary discretion.