Added 9 October 2026 theoretically adverb Categories: Describing WordsUncommon Words adverb ! Definition from WordNet 3.1, Princeton University. More about theoretically at Wordnik → Where our words come from → In theory; according to the assumed facts. on paper the candidate seems promising In a theoretical manner. he worked the problem out theoretically Related Words: theoreticalconceptualconceptuallynotionallytheoreticnotionalintellectuallynominallynominalformally Back to today's word