Word.ws English Dictionary

treasonful

treasonful adjective: treasonous.

Adjective

treasonful (comparative more treasonful, superlative most treasonful)

  1. treasonous

Forms of treasonful

comparativemore treasonful
superlativemost treasonful

Origin of treasonful

From treason + -ful.

Questions about treasonful

What does treasonful mean?
Treasonful means treasonous.
What part of speech is treasonful?
Treasonful is an adjective.

Words near treasonful in the dictionary

  1. treason
  2. Treason Day
  3. treasonable
  4. treasonableness
  5. treasonably
  6. treasonful
  7. treasonish
  8. treasonist
  9. treasonists
  10. treasonless
  11. treasonmonger

Source and license

Adapted from Wiktionary: treasonful (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.

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