Vocabulary in context
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Fallacious
Deceptive; based on or characterized by a fallacy; likely to mislead.
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Imagine This
The scam artists pretended to be tour guides and made the tourists follow them into an alley, where they were robbed.
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Sounds Like
fuh-LAY-shuhs
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Looks Like
fal-LAY-shuss
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Remember This
The root 'fall-' comes from fallere, meaning 'to deceive'; a fallacy is a mistaken argument that seems plausible.
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Other Forms
fallacynoun
fallaciouslyadverb
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Connect With
specious, misleading, deception, faulty reasoning, logical fallacy, spurious
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Note
Fallacious describes reasoning, not merely a fact that is false. Do not confuse with 'false' or 'falsifiable' in scientific contexts; 'fallacy' is a flawed line of reasoning.
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Study Deeper
Examples
- The argument was fallacious, relying on an appeal to emotion rather than evidence.
- Claiming that the product cures all illnesses is fallacious and misleads consumers.
Synonyms
speciousdeceptivemisleadingspuriousfaulty
Antonyms
soundvalidlogicalreasonable
Etymology
From Latin fallax, fallac-, meaning 'deceitful,' from fallere 'to deceive.' The term entered English via Old French and Middle English.
Mnemonic
Think: fall for a fallacy. If you might fall for a deceit, it's fallacious.
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Fickle
adjectiveOften changing; unstable or inconsistent in behavior, opinions, or loyalties.
Tenacious
adjectiveNot easily pulled apart; holding fast or continuing with determination, whether physically or figuratively.
Absurdity
nounThe quality or state of being wildly unreasonable, illogical, or ridiculous; something that is completely contrary to reason or common sense.
Similar Words
Related words and words with the same part of speech.
Abstruse
adjectiveDifficult to understand; obscure or highly complex.
Accidental
adjectiveHappening by chance or without deliberate planning; not intended. In music, it is also a noun for a symbol that temporarily alters a pitch.
Acerbic
adjectiveSharp or biting in tone or taste; caustic or mordant in manner.
Acquiescent
adjectiveReady to agree or approve without protest; compliant.
Adamant
adjectiveRigid in opinion or purpose; not willing to change one's mind or position.
Adept
adjectiveHaving or showing a high level of skill or proficiency; very capable.
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