Unwilling to state facts or opinions simply and directly.
Not willing to state the facts in simple, direct words; euphemistic and insincere.
Origin of mealy-mouthed
- Akin to the German expression Mehl im Maule behalten to be indirect in speech (literally, to have meal in the mouth)
From American Heritage Dictionary of the English Language, 5th Edition
- Possibly from German Mehl im Maule behalten via Martin Luther