The meaning of WONDERFUL is exciting wonder : marvelous, astonishing. How to use wonderful in a sentence. So, what does wonderful mean? It means extraordinary, delightful, full of wonder. It is a word that adds light to conversations, inspires positivity, and connects deeply with human emotions. Whether you are describing a person, an experience, or an achievement, wonderful is always the right choice when you want to express admiration and joy. WONDERFUL definition: 1. extremely good: 2. extremely good: 3. extremely good: . Learn more. Master the word "WONDERFUL" in English: definitions, translations, synonyms, pronunciations, examples, and grammar insights - all in one complete resource.