1. Incapable of being modified in form or character or strength (especially by making less extreme)
   "these variations from custom are illogical, incomprehensible, and unmodifiable"

Antonym: modifiable

• concuss
• concussion
• concussive
• condemn
• condemnable
• condemnation
• condemnatory
• condemner
• condemning
• condensable
• condensate
• condensation
• condensation pump
• condensation trail
• condense
• condensed milk
• condenser
• condenser microphone
• condensing
• condescend
• condescending
• condescendingly
• condescendingness
• condescension
• condign