1. To a high degree or extent; favourably or with much respect
   "extremely interesting"
   - highly, majorly 
2. To an extreme degree
   "extremely cold"; "extremely unpleasant"
   - exceedingly, super, passing

See also: extreme

• Irishwoman
• iritic
• iritis
• irk
• irksome
• irksomely
• iron
• iron age
• iron blue
• iron boot
• iron cage
• iron carbide
• Iron Chancellor
• iron collar
• iron curtain
• iron deficiency anaemia
• iron deficiency anemia
• iron disulfide
• Iron Duke
• iron filing
• iron fist
• iron foundry
• iron heel
• iron horse
• Iron Lady