conspiratorial

adjective

con·​spir·​a·​to·​ri·​al kən-ˌspir-ə-ˈtȯr-ē-əl 

: of, relating to, or suggestive of a conspiracy

conspiratorially

kən-ˌspir-ə-ˈtȯr-ē-ə-lē 

adverb

Examples of conspiratorial in a Sentence

She gave me a conspiratorial smile across the table.

His voice became low and conspiratorial.

Recent Examples on the Web

At a time when social isolation, information silos and the deliberate propagation of misinformation in the real world are fueling widespread and dangerous conspiratorial beliefs and real acts of violence, a story like this, with characters like these, seems frighteningly plausible. —Scott Feinberg, HollywoodReporter, 31 Aug. 2025

Some weren’t convinced that Swift’s engagement to a man actually meant that the singer was straight, seemingly willing to keep the conspiratorial flame burning. —Dani Di Placido, Forbes.com, 28 Aug. 2025

The film has also been a magnet for conspiratorial chatter, with viewers and critics alike theorizing about the reasons for its box-office success. —Shirley Li, The Atlantic, 27 Aug. 2025

But behind the scenes, the chair race descended into a campaign of anonymous, conspiratorial letters sent to party members. —Lucas Robinson, San Diego Union-Tribune, 20 Aug. 2025

Word History

First Known Use

1855, in the meaning defined above

Rhymes for conspiratorial

• ambassadorial
• combinatorial
• gladiatorial
• gubernatorial
• inquisitorial
• mediatorial
• multifactorial
• prosecutorial
• supratentorial
• arboreal
• armorial
• authorial

Kids Definition

conspiratorial

adjective

con·​spir·​a·​to·​ri·​al kən-ˌspir-ə-ˈtōr-ē-əl 

-ˈtȯr-

: of or relating to a conspiracy

conspiratorially

-ē-ə-lē 

adverb

Legal Definition

conspiratorial

adjective

con·​spir·​a·​tor·​i·​al kən-ˈspir-ə-ˈtōr-ē-əl 

: of, relating to, or suggestive of a conspiracy

conspiratorially adverb