constitutionalrelating to or affecting the basic nature of something; serving as an essential component (not just a country's governing legal document)Her constitutional optimism helped her stay hopeful even during the toughest years of her career.NoteHer constitutional optimism helped her stay hopeful even during the toughest years of her career.Elon.io is an online learning platformWe have an entire course teaching GRE Verbal — Essential Vocabulary grammar and vocabulary.Start learning GRE Verbal — Essential Vocabulary now