Home › Words › O › overmasterfulnessovermasterfulnessovermasterfulness means excessive masterfulness.EtymologyFrom over- + masterfulness.nounExcessive masterfulness.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.overmighty 73% match — Excessively mighty. vs overmasterfulness →masterfulness 71% match — The quality of being masterful. vs overmasterfulness →domineeringness 70% match — The quality of being domineering. vs overmasterfulness →overpoweringness 68% match — The quality of being overpowering. vs overmasterfulness →overpowerful 68% match — Excessively powerful. vs overmasterfulness →overweeningness 68% match — The quality of being overweening. vs overmasterfulness →domineering 66% match — Overbearing, dictatorial or authoritarian. vs overmasterfulness →overmeekness 66% match — Excessive meekness. vs overmasterfulness →