1. [Brit] Very tired
   - knackered [Brit], drained [Brit], shagged out [Brit], shagged [Brit], zonked [Brit], stonkered [Brit, Austral, NZ], shattered [Brit] 
2. (informal) nearly unconscious from alcohol or drugs
   - zonked

See also: tired

• irresistible
• irresistible impulse
• irresistibleness
• irresistibly
• irresolute
• irresolutely
• irresoluteness
• irresolution
• irresolvable
• irrespective
• irresponsibility
• irresponsible
• irresponsibleness
• irresponsibly
• irresponsive
• irretrievable
• irretrievably
• irreverence
• irreverent
• irreverently
• irreversibility
• irreversible
• irreversible process
• irreversibly
• irrevocability