Word.ws English Dictionary

proofless

proofless adjective: without proof.

Adjective

proofless (not comparable)

  1. Without proof.
    • nor did I content my self with the proofless proposal of my Conjecture1659 December 30 (date written), Robert Boyle, New Experiments Physico-Mechanicall, Touching the Spring of the Air, and Its Effects […], Oxford, Oxfordshire: […] H[enry] Hall, printer to the...
    • A sneering smile was the only answer for a moment; then,-- "I shall take great pleasure in confounding my enemies should the matter be brought before a court,--I'm sure if the colonel can stand that sort of thing I can,--but as for defending myself or anybody else from utterly unjust and proofless...1890, Charles King, From the Ranks

Origin of proofless

From proof + -less.

Words formed from proofless

Questions about proofless

What does proofless mean?
Proofless means without proof.
What part of speech is proofless?
Proofless is an adjective.

Words near proofless in the dictionary

  1. proofgames
  2. proofhouse
  3. proofhouses
  4. proofing
  5. proofings
  6. proofless
  7. prooflessly
  8. prooflessness
  9. prooflike
  10. prooflisten
  11. prooflistened

Source and license

Adapted from Wiktionary: proofless (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “proofless.” Word.ws, https://word.ws/proofless. Based on Wiktionary, CC BY-SA 4.0.