Added 10 October 2026 ingenuousness noun Categories: Describing WordsRare Words noun ! Definition from WordNet 3.1, Princeton University. More about ingenuousness at Wordnik → Where our words come from → The quality of innocent naivete. Openly straightforward or frank. Related Words: artlessnessinnocencenaturalnessuningenuousnessingenuitydisingenuousnessuningenuityunfeignednessingeniousnessguilelessnessinsincerenessingeniosity Back to today's word