← BackshareGuessgelidness/ˈdʒɛlɪdnəs/nounExtreme cold; the quality of being icy or frozen.The gelidness of the winter wind made everyone shiver.The gelidness of her stare told me she was not happy.Hikers were unprepared for the gelidness of the mountain stream.SynonymscoldnessfrigidityicinessAntonymswarmth