say it: thee-ur-ET-i-kuh-lee
theoretically is an adverb meaning "in theory; according to the assumed facts". It carries 2 recorded senses.
in theory; according to the assumed facts
“on paper the candidate seems promising”
Definitions, synonyms and semantic relations for theoretically come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.