20/20 hindsight(redirected from 20 20 hind sight)
Knowledge of what one should have done, because it is easier to clearly reevaluate past actions or decisions than when they are being made or done. A reference to the visual acuity of normal eyesight (20/20 vision). With 20/20 hindsight, I can see now that having my brother as my legal counsel was unwise. A: "I can't believe I was ever interested in such a self-absorbed jerk." B: "Don't blame yourself. We all have 20/20 hindsight." Of course, with 20-20 hindsight, it's easy to laugh at the quack doctors of the early 19th century, but back then, even legitimate medicine was still largely rooted in superstition and pseudoscience.
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.