accidently

As an adjective unexpected

is not expected, anticipated or foreseen.

As an adverb accidently is

by accident, unexpectedly, by chance; fortuitously, unintentionally.

As adverbs the difference between accidently and incidentally

is that accidently is by accident, unexpectedly, by chance; fortuitously, unintentionally while incidentally is (manner) in an incidental manner; not of central or critical importance.

As adverbs the difference between incidently and accidently

is that incidently is Alternative spelling of incidentally while accidently is by accident, unexpectedly, by chance; fortuitously, unintentionally.

As adverbs the difference between accidently and intentionally

is that accidently is by accident, unexpectedly, by chance; fortuitously, unintentionally while intentionally is in an intentional manner, on purpose.

As adverbs the difference between haphazardly and accidently

is that haphazardly is in a haphazard manner; in a random, chaotic, and incomplete manner while accidently is by accident, unexpectedly, by chance; fortuitously, unintentionally.

As an adverb accidently is

by accident, unexpectedly, by chance; fortuitously, unintentionally.

As adverbs the difference between suddenly and accidently

is that suddenly is happening quickly and with little or no warning; in a sudden manner while accidently is by accident, unexpectedly, by chance; fortuitously, unintentionally.

As adverbs the difference between randomly and accidently

is that randomly is in a random way while accidently is by accident, unexpectedly, by chance; fortuitously, unintentionally.

As adverbs the difference between deliberately and accidently

is that deliberately is intentionally, or after deliberation; not accidentally while accidently is by accident, unexpectedly, by chance; fortuitously, unintentionally.