blind as a bat
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Related to blind as a bat: Idioms
(as) blind as a bat
1. Unable to see at all. After neglecting his vision for years, my grandfather became blind as a bat, unable to even see shadows.
2. Having poor vision. I've worn glasses for 20 years, so I'm as blind as a bat now.
3. Oblivious to something. Are you blind as a bat? Those two have been flirting all afternoon!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
*blind as a bat
1. completely blind. (Bats are not really blind. *Also: as ~.) He lost his sight in an accident and is as blind as a bat.
2. not able to see well. I'm as blind as a bat without my glasses.
3. unwilling to recognize problems or bad things. Connie is blind as a bat when it comes to her daughter's disgraceful behavior.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
blind as a bat
Quite blind; also, unaware. For example, Without my glasses I'm blind as a bat, or I had no idea they wanted me to take over his job; I was blind as a bat. This simile, based on the erroneous idea that the bat's erratic flight means it cannot see properly, has survived even though it is now known that bats have a sophisticated built-in sonar system. [Late 1500s]
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
blind as a bat
If someone is as blind as a bat, they cannot see well. Without my glasses I was as blind as a bat. Note: Most bats are active only at night and find their way by sending out sounds and sensing objects from the echoes, rather than by using their eyesight.
Collins COBUILD Idioms Dictionary, 3rd ed. © HarperCollins Publishers 2012
(as) blind as a ˈbat
(humorous) not able to see well: I’m as blind as a bat without my glasses.Farlex Partner Idioms Dictionary © Farlex 2017