1. Without any excuse
   "he is unjustifiably harsh on her"
   - inexcusably

See also: unjustifiable

Antonym: justifiably

• stock-in-trade
• stock-index futures
• stock-keeping unit
• stock-purchase warrant
• stock-still
• stockade
• stockbroker
• stockbroker belt
• stockbroking
• stockcar
• stocked
• stocked with
• stocker
• stockfish
• stockholder
• stockholder of record
• stockholders meeting
• stockholding
• stockholdings
• Stockholm
• stockhorn
• stockily
• stockiness
• stockinet
• stockinette