let well enough alone

let well enough alone

To refrain from changing, disturbing, or becoming involved in something so as to avoid unintentionally causing (or worsening) problems. To be honest, you should just let well enough alone at this point. She's so angry that anything you say will just make things worse. Messing with the registry can cause catastrophic problems for your computer. If it isn't already totally busted, I would let well enough alone.

See also: alone, enough, let, well

Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

let well enough alone

 and leave well enough alone

to leave things as they are (and not try to improve them). There isn't much more you can accomplish here. Why don't you just let well enough alone? This is as good as I can do. I'll stop and leave well enough alone.

See also: alone, enough, let, well

McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.