The word "accidentally" is a better than "on accident." I don't believe that on accident is grammatically correct. I am not sure what you mean by when to use it.
the opposite of accident is intentional
By accident (As 'by' is being used as a stand in for 'as a result of an', which is similar to, 'as a result of an action of Jeff', or 'by Jeff') This also raises the question "why is it 'by accident' but 'on purpose'?" 'On purpose' implies a following of a purpose, (i.e. "on point").
What is opposite of Author purpose
on accident
accident
The opposite of a purpose for a tool could be its form. The opposite of the purpose for an action could its plan. The opposite of (having) a purpose could be purposelessness or randomness. * For "on purpose" the opposite is accidentally, inadvertently, unconsciously.
purpose of accident reporting to prevent further occurrence and to learn a lesson from it.
Yes, men kill dolphins by accident or purpose Yes, people kill dolphins by accident or purposeYes, babies kill dolphins by accident or purposeYes, women kill dolphins by accident or purposeYes, people kill dolphins by accident or purpose
Yes, men kill dolphins on accident or purpose and both.
Yes it was discovered on accident
Life is NO accident, God made you and me for a purpose. That purpose is to worship and glorify his name! Remember that in all you do!
To determine how to avoid a similar accident in the future