His mealy-mouthed apology did not convince anyone of his sincerity.
The mealy-mouthed politician avoided answering the tough questions during the debate.
The CEO's mealy-mouthed statement about the company's financial troubles raised more questions than answers.
His mealy-mouthed response to the criticism only made matters worse.
She gave a mealy-mouthed excuse for being late, but no one believed her.