These dastardly acts will not go unpunished.
Source: tatoeba (1412070)
Dastardly
/ˈdæstɚdli/
Synonyms for "dastardly" (13 found)
Ranked by relevance and common usage.
Closest matches (3)
Strong matches (4)
Related words (6)
Adjective(4 words)
Choosing the right synonym
- Closest matches in this entry: base, black, cowardly, craven, dastard.
- Sentence evidence is available for dastardly, so synonym choice can be checked against real usage rather than a flat word list.
- Ranking signals come from derived_reverse, opengloss, wordnet.
Synonym selection checklist
- Match the part of speech before comparing meanings.
- Check whether the synonym changes intensity, formality, or emotional tone.
- Read the replacement inside the full sentence, not just beside "dastardly".
- Prefer the clearest word over the most unusual word when writing for speed or comprehension.
When not to replace "dastardly"
Keep "dastardly" when the sentence already sounds natural, when a synonym would add unintended emphasis, or when readers need the most familiar wording. A synonym should clarify or sharpen the message, not simply make the sentence look more varied.
If two options seem close, choose the one that best matches the audience and purpose of the sentence.
Replacement workflow
1. Preserve meaning
Choose a synonym only if it keeps the core idea of "dastardly" intact in the sentence you are editing.
2. Tune tone
Check whether the replacement sounds more formal, casual, emotional, technical, or forceful than the original word.
3. Re-read context
Read the full sentence after the swap. Keep the synonym only when the sentence becomes clearer or more precise.
Review note: Synonym lists are ranked with lexical data and reviewed for practical writing value. Use the comparison notes, sentence evidence, and source labels together; a high-ranking synonym can still be wrong when the audience, register, or grammar changes.
Final fit check
After choosing a replacement for "dastardly", read the sentence once for meaning and once for rhythm. The best synonym should feel natural in the full sentence, not only accurate in a word list.
If the synonym makes the sentence slower, vaguer, or more dramatic than intended, keep "dastardly" or choose a simpler alternative from the closest-match group.
Related word relations
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
More general
4 entriesadverb of mannerbehavioral attributemanner adverbmoral attribute
More specific
2 entriesCollocations
6 entriesdastardly actdastardly behaviordastardly deeddastardly plotdastardly schemedastardly trick
Inflections
2 entriesmore dastardlymost dastardly
Derivations
1 entriessimilar
2 entriesSample sentences
4 total sentences available.
That was dastardly.
Source: tatoeba (7073291)
During the Big Scare, while everyone was afraid that the Exclusion Ultimatum meant the Martians wanted an interplanetary war, the Earth Governments would have been only too ready to hang, shoot, stab, gas, electrocute, freeze, burn, poison, impale and/or defenestrate the dastardly culprits responsible.
Source: tatoeba (11810255)
I ask that the Congress declare, that since the unprovoked and dastardly attack by Japan on Sunday, December 7th, 1941, a state of war has existed between the United States and the Japanese Empire.
Source: wiktionary
Common questions
What are the closest synonyms for "dastardly"?
Closest matches include base, black, cowardly, craven, dastard.
How should I check whether a synonym fits "dastardly"?
Compare the replacement against real sentence context. This entry includes sample sentences so you can check tone, grammar, and meaning before swapping words.