don't-know

[ dohnt-noh ]

/ ˈdoʊntˈnoʊ /

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noun

a person who has no opinion or is undecided, as in answering an item on a public-opinion poll.

QUIZ

QUIZ YOURSELF ON OPPOSITES OF RED BEFORE YOU TURN SCARLET

We have a challenge that will make you blush: do you know the many words and ways to describe the opposite of red?

Question 1 of 7

Which of the following colors is used to symbolize AIR?

white

green

red

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Origin of don't-know

First recorded in 1885–90

Words nearby don't-know

Don't give up the ship, don't go there, Don't hide your light under a bushel, don't hold your breath, Don't judge a book by its cover, don't-know, don't let the grass grow under one's feet, Don't lock the stable door after the horse has been stolen, Don't look a gift horse in the mouth, don't mention it, Don't put all your eggs in one basket

How to use don't-know in a sentence

I don't know why or who's doing it, but it's the legacy…and it's a legacy that is so important to the culture.
Phylicia Rashad and the Cult of Cosby Truthers|Stereo Williams|January 8, 2015|DAILY BEAST
They know they will face either a swift backlash or deafening silence.
Phylicia Rashad and the Cult of Cosby Truthers|Stereo Williams|January 8, 2015|DAILY BEAST
What they say is, ‘We don’t approve of violence, but you know what?
Bill Maher: Hundreds of Millions of Muslims Support Attack on ‘Charlie Hebdo’|Lloyd Grove|January 8, 2015|DAILY BEAST
No one seems to know who that is—or why they would want to do such a thing.
Phylicia Rashad and the Cult of Cosby Truthers|Stereo Williams|January 8, 2015|DAILY BEAST

Scalise spoke briefly, adding little of substance, saying that the people back home know him best.
The Price of Steve Scalise’s Silence|Jason Berry|January 7, 2015|DAILY BEAST
She is quite true, but not wise, and your left hand must not know what your right hand is doing.
Checkmate|Joseph Sheridan Le Fanu
He came to the top of the stairs with a lamp in his hand, and wanted to know what the rumpus was about.
The Bondboy|George W. (George Washington) Ogden
It seems very strange that I shall actually know Liszt at last, after hearing of him so many years.
Music-Study in Germany|Amy Fay
Kind of a reception-room in there—guess I know a reception-room from a hole in the wall.
Boys and Girls Bookshelf; a Practical Plan of Character Building, Volume I (of 17)|Various
The policemen looked dull and heavy, as if never again would any one be criminal, and as if they had come to know it.
Bella Donna|Robert Hichens

British Dictionary definitions for don't-know

don't know

noun

a person who has not reached a definite opinion on a subject, esp as a response to a questionnaire

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012