high-handed; domineering; overbearing
Describes a person or attitude that is arrogant, pushy, or acting superior; often used for someone who talks down to others or insists on their own way.
His high-handed attitude really makes me angry.
My boss came on strong and overbearing, so the discussion hit a snag.
Originally from shogi (Japanese chess), where 高飛車 referred to an aggressive opening move with the rook (飛車). The figurative meaning of a high-handed attitude developed from this aggressive, forward strategy.