treasonous

adjective

trea·​son·​ous ˈtrē-zə-nəs 

ˈtrēz-nəs

: treasonable

Examples of treasonous in a Sentence

Recent Examples on the Web

There will be more local politicians who fail the integrity test and become treasonous to their constituents. — Dp Opinion, Denver Post, 31 May 2026

This president, who called his treasonous supporters to arms, wants our tax dollars to compensate these tyrants. — Sun Sentinel Editorial Board, Sun Sentinel, 27 May 2026

And remember too, putting your name on the Declaration of Independence was treasonous. — Mo Rocca, CBS News, 22 Feb. 2026

The president seemed to be heading toward political exile, his election claims destined to be inscribed in history as treasonous lies. — Jamie Thompson, The Atlantic, 6 Jan. 2026

Word History

First Known Use

1593, in the meaning defined above

Rhymes for treasonous

• minibus
• superfluous
• bus
• buss
• cuss
• fuss
• glace
• huss
• plus
• pus
• russ
• sus