You are right to object. In Jainism, using the term “almighty” in that context is not appropriate, because Jain Dharma does not स्वीकार a creator or all-powerful God who grants forgiveness.

A more Jainly correct way to say it would be:

• I made an inaccurate word choice.
• In Jainism, one seeks forgiveness through repentance, self-purification, and karmic cleansing, not by asking an almighty creator deity.
• The proper spirit is kshama: humility, remorse, and a firm resolve not to repeat the mistake.

A Jain expression of this idea would be:

• Micchāmi Dukkaḍaṃ — “If I have caused any harm, may that wrongdoing be forgiven.”
• This is not a request to a creator god, but an expression of repentance and seeking pardon from all जीवs harmed by one’s actions.

So the term “almighty” should not have been used in a Jain context.