Google doesn't recognise Charmont as a French word? What are you on about Nigel, where did it come from?!
merveilleux
wonderful, marvelous, great, wondrous, lovely, heavenly
magnifique
magnificent, wonderful, gorgeous, splendid, great, lovely
formidable
tremendous, wonderful, terrific, fantastic, fantastical, sensational
extraordinaire
extraordinary, special, wonderful, uncommon, out of this world, prodigious
étonnant
surprising, astonishing, astounding, wonderful, wondrous, fantastic
sensationnel
sensational, stunning, terrific, wonderful, thrilling, out of this world
miraculeux
miraculous, wonderful, marvellous, marvelous