west-southwest adjective 3adverb 1noun 1 adjective3 •Of, in or pertaining to the west-southwest; west-southwestern. •Situated toward or in the direction of the west-southwest; west-southwestward; west-southwesterly.A west-southwest course. •Coming from the west-southwest; west-southwesterly.A west-southwest wind. adverb1 •Towards or in the direction of the west-southwest; west-southwestwards.We are travelling west-southwest at the moment. noun1 •The compass point halfway between southwest and west; specifically at a bearing of 247.5°.