Difference between Unintentionally and Accidentally

UNINTENTIONALLY vs ACCIDENTALLY: ADVERB

Of a minor or subordinate nature
Unintentionally.
In an accidental manner; unexpectedly; by chance; unintentionally; casually; fortuitously; not essentially.
In an incidental manner
Without intention; in an unintentional manner
Without advance planning

In an unintentional manner
Without intention
In an accidental manner; by chance; casually; fortuitously; not essentially or intrinsically.

Maliciously, Carelessly, Advertently, Purposefully, Deliberately, Purposely, Unknowingly, Involuntary, Involuntarily, Unwillingly, Unconsciously, Intentionally, Unwittingly, Inadvertently, Accidentally

Penis, Coincidentally, Involuntarily, Suddenly, Erroneously, Randomly, Carelessly, Unwittingly, Mistakenly, Inadvertently, By chance, Circumstantially, Incidentally, Unexpectedly, Unintentionally

Somehow, Blatantly, Wittingly, Unnecessarily, Mistakenly, Willfully, Knowingly, Unknowingly, Involuntary, Involuntarily, Unwillingly, Unconsciously, Intentionally, Unwittingly, Inadvertently

Apparently, Fatally, Intentionally, Unknowingly, Coincidence, Penis, Coincidentally, Involuntarily, Suddenly, Unwittingly, Mistakenly, Inadvertently, By chance, Incidentally, Unintentionally

However, it may also unintentionally promote relational processing.
Sometimes our behavior is unintentionally offensive to others.
Blackout in Pakistan: Electricity Shutdown Intentionally or Unintentionally?
Overusing foreshadowing can have an unintentionally comic effect.
Unintentionally, I was actually jumping up and down.
Well, their primitive translators got that unintentionally right.
Protected activity unintentionally captured is not a violation.
Some phrases can become unintentionally rude if misused.
Perhaps they are unintentionally requesting an unindexed search.
Nevertheless, mainstream sources have been known to unintentionally publish information that is false, or to intentionally or unintentionally exclude or alter certain details.