Marvellous/ˈmɑːrvələs/ Definition 1 of 3Pro Tip 1/3Positive Emphasis Use 'marvellous' to emphasize something very positive and impressive. The chef prepared a marvellous meal that impressed all the guests. Pro Tip 2/3Emotional Impact 'Marvellous' carries an emotional tone, showing your strong personal approval. You got the job? That's marvellous news! Pro Tip 3/3Slightly Formal 'Marvellous' feels a bit formal, so it's best for written English or formal speech. The board found your proposal absolutely marvellous.