Added 9 October 2026 responsiveness /ɹɪˈspɒnsɪvnɪs/ noun Categories: Mind & IdeasDescribing WordsUncommon Words noun ! Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about responsiveness at Wordnik → Where our words come from → The quality or state of being responsive. The ability of a machine to adjust to external influences. The responsiveness of my old PC is nearly zero! Related Words: reactivityresponsivityreactivereactionrespondingreceptivityreceptivereceptivenessadaptabilityadaptationresponseeffectiveness Back to today's word