in all truthfulness

in all truthfulness

In one's sincere opinion; without any disingenuousness. In all truthfulness, I think this project plan is seriously flawed.
See also: all
Farlex Dictionary of Idioms.
See also:
  • in all seriousness
  • in all honesty
  • swear down
  • have swallowed a dictionary
  • ain’t 1
  • phased
  • phazed
  • at one's
  • at someone's
  • open one’s kimono
References in periodicals archive
I am one of the few people still alive that was raised by a Black Auntie and I can tell you in all truthfulness, I still love Aunt Maria as much as I love my own mother.