Definition of niveous in English:

niveous

adjective

literary
  • Snowy or resembling snow:

    ‘all seemed to shimmer and slip away into a niveous haze, as if a fog was rising from some realm beneath the floor’
    • ‘And the niveous winter gleam, although polished, could never radiate the warmth of your smile.’
    • ‘His interpretation of the crystalline clearness and the niveous winter air is individual and exceptional. His most successful work thus far is along.’

Origin

Early 17th century: from Latin niveus (from nix, niv- snow) + -ous.

Pronunciation:

niveous

/ˈnɪvɪəs/