1. Expressive of sympathetic pleasure or joy on account of someone's success or good fortune
   "a gratulatory address"
   - congratulatory

See also: felicitous

• irritatingly
• irritation
• irritative
• irrupt
• irruption
• irruptive
• IRS
• Irtish
• Irtish River
• Irtysh
• Irtysh River
• Irula
• Irving
• Irving Berlin
• Irving Howe
• Irving Langmuir
• Irvingia
• Irvingia gabonensis
• ISA
• Isaac
• Isaac Asimov
• Isaac Bashevis Singer
• Isaac Hull
• Isaac M. Singer
• Isaac Mayer Wise