do no good

To not improve (something) or have no beneficial effect. You can get mad at me if you like, but it will do no good. Unfortunately, it seems the medication did no good against your father's illness. I know it does no good to complain like this, but I'm just so frustrated!

do no good

see under do any good.

See also: good, no

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.

See also:

be in a good cause
be good news
be in good shape
bruva
be good for (someone or something)
be good for something
for good measure
be as good as new
as good as it gets
(one) (has) never had it so good

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