1. In theory; according to the assumed facts 
2. In a theoretical manner
   "he worked the problem out theoretically"

See also: theoretical

Antonym: empirically

• intrepid
• intrepidity
• intrepidly
• intricacy
• intricate
• intricately
• intrigue
• intriguer
• intriguing
• intriguingly
• intrinsic
• intrinsic factor
• intrinsic fraud
• intrinsical
• intrinsically
• intro
• introduce
• introduction
• introductory
• introgression
• introit
• introitus
• introject
• introjected
• introjection