Please accept my most profound apologies.

Meaning

Offering a very deep and formal apology.

Examples

• John: 'I am truly sorry for the misunderstanding, Alice.'<br>
• Alice: '<b>Please accept my most profound apologies</b> for the inconvenience caused.'
• John: '<b>Please accept my most profound apologies</b>. I should have overseen this more carefully.'
• Alice: 'The presentation was poorly prepared, John. I am very sorry.'<br>