Pronunciation (UK) IPA (key): /ˈslɛndə/ (US) enPR: slĕnʹdər, IPA (key): /ˈslɛndɚ/ Audio (US)(file) Adjective Positive slender Comparative slenderer Superlative slenderest When something is slender, it means that the object is thin. Synonyms: thin and slim That model is rather slender in shape, which explains why she received many invitations for her photograph to be taken.Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads