invaluable
/ɪnˈvælju(ə)bl̩/ adjective
- adjective Having great or incalculable value.
- adjective (obsolete) Not valuable; valueless; worthless.
Synonyms
priceless inestimable unvaluable precious unpriced without price worth one's weight in gold no-good valueless bastardly blown cacky chaffy cocking crapalicious cruddy cullionly draffish draffy dreckish
Antonyms
valuable precious crucial estimable worthy worthly prizable treasurous worth every penny
Etymology
From in- + valuable (compare priceless). Piecewise doublet of unvaluable.
Webster’s 1913
- adjective Valuable beyond estimation; inestimable; priceless; precious.
Sources: Wiktionary · Webster’s 1913 — from the Wiktionary entry “invaluable”, CC BY-SA 4.0. Details