Added 10 October 2026 deceitfully /dɪˈsiːtf(ə)li/ adverb Categories: Describing WordsRare Words adverb ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about deceitfully at Wordnik → Where our words come from → In a corrupt and deceitful manner. he acted dishonestly when he gave the contract to his best friend Related Words: dishonestlyvenallyfalselywronglydeceivinglydeceptivelydeviouslydeceiptfullyundeceptivelydisingenuouslydeceivablylyingly Back to today's word