midwinter /ˌmɪdˈwɪntə(ɹ)/noun 2adjective 1forms 1 noun2 •The middle of winter.IN midwinter the shadow that hung over John gathered into storm-cloud. — 1913 •The winter solstice; about December 21st or 22nd. adjective1 •Of or occurring in the middle of winter.When my son was born, a midwinter child, he cried pitifully at the ward's lights, and settled to sleep only when he was laid in a big pram with a black hood under a black umbrella. — 2004 formsmidwinters