Synonyms of invaluable

invaluable

adjective

(ˌ)in-ˈval-yə-bəl 

as in valuable

having a value beyond any ability to appraise or adequately appreciate

the list of likely donors proved to be invaluable to our fund-raising efforts

Synonyms & Similar Words

• valuable
• inestimable
• priceless
• immeasurable
• incalculable
• precious
• costly
• expensive
• dear
• pricey
• premium
• high
• superexpensive

Antonyms & Near Antonyms

• worthless
• valueless
• no-good
• nothing
• good-for-nothing

Example Sentences

Recent Examples of invaluable

Mayor Humdinger, once again voiced by the invaluable Ron Pardo, provides the evil vibes along with his criminal gang of felines. — Frank Scheck, HollywoodReporter, 9 Aug. 2026

The ARChive partners with the invaluable online nonprofit Internet Archive to make rare historical recordings readily available. — Christopher Arnott, Hartford Courant, 7 Aug. 2026

Such financing lines may also prove invaluable in other ways. — Rafa Sales Ross, Variety, 7 Aug. 2026

Bundist Marek Edelman, a leader of the Warsaw Ghetto Uprising, wrote an invaluable book about the resistance in 1945, which was not sold in Israel or published in Hebrew until 2001. — Literary Hub, 6 Aug. 2026