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.
The anticlimax of the story was very boring!
My father was such felicity that he buys a car
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.