west-northwestward

or west-north·west·ward·ly

[ west-nawrth-west-werd or west-nawrth-west-werd-lee; Nautical west-nawr-west‐ ]
/ ˈwɛstˌnɔrθˈwɛst wərd or ˈwɛstˌnɔrθˈwɛst wərd li; Nautical ˈwɛstˌnɔrˈwɛst‐ /
Nautical

adjective

moving, bearing, facing, or situated toward the west-northwest.

adverb

toward the west-northwest.

Origin of west-northwestward