ETYM Latin arbitrarius, from arbiter: cf. French arbitraire. Related to Arbiter.
Based on or subject to individual discretion or preference or sometimes impulse or caprice.
Discretionary; capricious; tyrannical.
Overbearing; oppressive; arbitrary; violent SYN. highhanded
In an arbitrary manner; by will only; despotically; absolutely.
In a domineering high-handed manner; highhandedly