to say nothing of (someone or something)

to say nothing of (someone or something)

Not even considering or mentioning the significance or impact of someone or something else; not to mention (someone or something). It will take me at least two hours to fix this part of the fence, to say nothing of repairing all of it. Their newborn will be difficult enough to take care of while they're away, to say nothing of their temperamental toddler.
See also: nothing, of, say
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

to say nothing of someone or something

not to even mention the importance of someone or something. John and Mary had to be taken care of, to say nothing of Bill, who would require even more attention. I'm having enough difficulty painting the house, to say nothing of the garage that is very much in need of paint.
See also: nothing, of, say
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.

to say nothing of

see under not to mention.
See also: nothing, of, say
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.

to say ˈnothing of something

and also; not forgetting: She is an expert in Chinese, to say nothing of speaking several European languages.
See also: nothing, of, say, something
Farlex Partner Idioms Dictionary © Farlex 2017

to say nothing of

And there is no need to mention. Used to allude to things that fill out an idea or argument: The yard is a mess, to say nothing of the house.
See also: nothing, of, say
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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