Languages › French What Does the French Word 'Génial' Mean in English? It's a great word to have on hand for casual conversations Share Flipboard Email Print French Vocabulary Pronunciation & Conversation Grammar Resources For Teachers By ThoughtCo Updated May 04, 2018 You might find yourself using the French word "génial" in a variety of situations. Génial is an adjective and is often used in informal conversations to express happiness. Definitions and Examples génial (adjective): of genius, inspired C'est une géniale idée !That's a brilliant idea! génial (adjective, informal): great, cool Ce film est génial.This movie is great. On va au resto. - Génial !We're going to a restaurant. - Great! Pronunciation The word génial is pronounced [zhay nyal].