1. Of or relating to arrowworms
   - chaetognathous

See also: Chaetognatha

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