inestimable signifie anglais

invaluable▼◼◼◼(of great value)
adjective
[UK: ɪn.ˈvæ.ljʊəb.l̩] [US: ˌɪn.ˈvæ.ljəb.l̩]The Internet is an invaluable source of information. = Internet est une source d'information inestimable.

priceless▼◼◼◼(so precious as not to be sold at any price)
adjective
[UK: ˈpraɪ.sləs] [US: ˈpraɪ.sləs]These paintings are priceless. = Ces tableaux sont inestimables.