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Definition of dastardly
dastardly
/ˈdæs.tɚd.li/
das · tard · ly
dastardly Lexical Profile
CEFR
C1
Grade
10
Tier
2
Usage
Rare
Syllables
3
dastardly Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• adjective
1
Wicked, cruel, and villainous, especially in a treacherous, underhanded, or cowardly manner.
Example
"The detective uncovered a dastardly plot to defraud the charity of its entire endowment."
Synonyms
View all synonyms for dastardly Antonyms
View all antonyms for dastardlyWord Nuance & Usage
Historically, 'dastardly' denoted an act committed with base cowardice or sneaky treachery, though in modern usage it is often used somewhat melodramatically or humorously to mean generically wicked or villainous.
• Rhymes for dastardly
Word Origin & Etymology
Derived in the 16th century from the noun 'dastard' (meaning a dullard or base coward), likely from Middle English 'dased' (dazed) combined with the pejorative suffix '-ard'.
Cite this Entry
Wordmom. (2026). Definition of Dastardly. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/dastardly