V2 Vocabulary Building Dictionary



Definition: 1. based on an illogical, unsound premise; 2. false, yet deceptive and tending to mislead

Synonyms: illogical, irrational, unsound, false, erroneous, invalid, misleading, deceptive

Antonyms: logical, rational, correct, substantiated, valid

Tips: For the word fallacious, think "false." Fallacious can simply mean false or not correct, but is usually used to describe someone being deceptively false. Also, think of the related word fallacy, which is a misconception or a false belief. If someone is being fallacious, that person is trying to get you to "fall" for a fallacy. It would be a fallacious (false, misleading) argument to try to convince someone of the fallacy (misconception) that donuts can be healthy.

Usage Examples:

Your hasty generalization is fallacious because you didn't take time to do adequate research. (illogical, invalid)

He lost the debate because his arguments were based on fallacious reasoning. (false, incorrect)

The case was overturned when it was determined that one of the witnesses had given a fallacious testimony. (false, misleading)

It was a fallacious argument, with no evidence behind it. (illogical, unsound, invalid)

Want to Learn More Words Like fallacious?
Discover How You Can Improve Your
Vocabulary 10 to 100 Times Faster with
the Power Vocabulary Builder

Dear Friend,

The definition and lessons for the word fallacious were made available by the Power Vocabulary Builder.

The Power Vocabulary Builder will help you develop a fuller, richer vocabulary 10 to 100 times faster than any other program available.

Visit the the Power Vocabulary Builder site right now to discover how you can get full access to this breakthrough program today!

What's your vocabulary level?
Power Vocabulary Builder
FREE E-mail Course!

Drop your details in the boxes below to receive a FREE vocabulary course: