seditious

American  

[si-dish-uhs] / sɪˈdɪʃ əs /

adjective

1. of, relating to, or of the nature of sedition.

2. given to or guilty of sedition.

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seditious British  

/ sɪˈdɪʃəs /

adjective

1. of, like, or causing sedition

2. inclined to or taking part in sedition

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Other Word Forms

• nonseditious adjective
• nonseditiously adverb
• nonseditiousness noun
• seditiously adverb
• seditiousness noun
• unseditious adjective
• unseditiously adverb
• unseditiousness noun

Etymology

Origin of seditious

First recorded in 1400–50; late Middle English sedicious, from Old French seditieux, from Latin sēditiōsus, equivalent to sēditi(ō) sedition + -ōsus -ous

Example Sentences

On Tuesday police charged Mr. Pong and three employees with selling seditious books, including “The Troublemaker,” my biography of Jimmy Lai.

From The Wall Street Journal • Mar. 26, 2026

Whether Apple Daily played a seditious role, and how much control Lai exerted over its stance was at the centre of his 156-day national security trial.

From BBC • Dec. 20, 2025

"If these ideas are deemed seditious or 'crossing the line', then I feel I can't predict the consequences of anything anymore, and I can only do what I truly believe."

From Barron's • Nov. 30, 2025

Federal courts and legal scholars have long emphasized that seditious conspiracy charges apply only to coordinated efforts to use force against the government, rather than political dissent.

From Los Angeles Times • Nov. 20, 2025

“You heard about the Verne Hamilton case over in Roundup? Been charged with making seditious comments, saying he wouldn’t go to war, that they’d have to take him feet first if he was conscripted?”

From "Hattie Big Sky" by Kirby Larson