There is no such word.
I was at the beach, and incidentally, so was he.
I am addicted to bacon.
He was pronounced dead at the scene
He bought an acre of land.
Your presence was late today.
My father was such felicity that he buys a car
The anticlimax of the story was very boring!
That girl looked similar to her sister.
dont ask me i dont know
The whole event was very dramatic.
The correct spelling of the word is incidentally.Some example sentences are:Incidentally, we have some evidence putting you at the scene.He incidently turns out to be my half brother.