Definition of truther
: one who believes that the truth about an important subject or event is being concealed from the public by a powerful conspiracy
He isn't a 9/11 truther, as some erroneously allege, but he has his fair share of "out there" beliefs.— Felix Biederman But it is not flattering to be called a "truther." The term originated, as far as anyone can tell, to characterize people who embraced alternative explanations for the Sept. 11 attacks.— Mark Leibovich
Test Your Vocabulary
Odd Habits and Quirks
-
- Which of the following best describes an easily irritated person?

Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share truther
Time Traveler for truther
The first known use of truther was in 2005
See more words from the same year