Occurring unexpectedly, unintentionally, or by chance. The confusion between accidently or accidentally is very common, especially among students and fast typists. However, the correct and only accepted spelling in all forms of English is “accidentally.” ACCIDENTALLY definition: by chance or mistake; in a way that is not planned or intended. See examples of accidentally used in a sentence. Accidently is a common misspelling of accidentally. The confusion probably arises from the fact that some people mispronounce accidentally as if it were spelled accidently. The meaning of ACCIDENTALLY is in an accidental or unintended manner : by accident. How to use accidentally in a sentence. While accidently is frequently encountered in informal writing and digital communications, accidentally is the unequivocally correct and standard adverbial form in modern English. According to Merriam-Webster, the words mean by accident or in an accidental or unintended way. So, if you do something ‘accidentally’ or ‘accidently,’ it usually means you didn’t mean to do it. You’ll usually be forgiven for something if it is just an accident. The confusion between accidently or accidentally is extremely common — but the solution is simple. Accidentally is the only correct spelling in modern English, while accidently is a spelling mistake caused by pronunciation habits. Idiom accidentally on purpose (Definition of accidentally from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press) Is it accidently or accidentally? Learn the correct spelling, meaning, pronunciation, grammar rules, and examples in this simple guide.