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Definition of conspiratorial
conspiratorial
/kənˌspɪr.əˈtɔːr.i.əl/
con · spir · a · to · ri · al
Adverb:conspiratorially
conspiratorial Lexical Profile
CEFR
C1
Grade
11
Tier
2
Usage
Top 10k
Syllables
6
conspiratorial Game Scores & Validity
Scrabble US
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WWF
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• adjective
1
Suggesting that one shares a secret with another person (typically of a tone of voice, whisper, or facial expression).
Example
"She leaned across the table and lowered her voice to a conspiratorial whisper so the other guests wouldn't hear."
2
Relating to, characteristic of, or constituting a secret plot or conspiracy.
Example
"The historian uncovered documents detailing a conspiratorial plot to overthrow the regional government."
Synonyms
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Word Origin & Etymology
Formed in the early 19th century from the noun conspirator, which derives from Latin conspirare ('to agree, unite, plot'), literally meaning 'to breathe together' from com- ('with, together') and spirare ('to breathe').
Cite this Entry
Wordmom. (2026). Definition of Conspiratorial. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/conspiratorial