Synonyms of 'apologetic'
The hospital staff were very apologetic about the mistake.
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If you are contrite, you are very sorry because you have done something wrong.
He was so contrite that he wrote me a letter of apology.
Someone who is penitent is very sorry for something wrong that they have done, and regrets their actions.
a penitent sinner
Thesaurus for apologetic from the Collins English Thesaurus
If you are apologetic , you show or say that you are sorry for causing trouble for someone, for hurting them, or for disappointing them.