Definition of mugginess in US English:

mugginess

noun

  • See muggy

    • ‘Various pieces of gear and belongings were scattered about, and a current of cool air broke the mugginess as it swept into the giant open window.’
    • ‘The mugginess is making them all sweat.’
    • ‘It was a warm day, and Anna was surprised to feel the mugginess in the air.’
    • ‘It had been raining steadily for three hours now, and the mugginess that had haunted their steps this morning had been washed and replaced by a somewhat cold day, surprising in Arizona.’
    • ‘The weather was beautiful and the sky a crisp blue contrast to the hazy mugginess of previous days.’

Pronunciation

mugginess

/ˈməɡēnəs//ˈməɡinəs/