adverb. ['ˌənɪnˈtɛnʃənəli, ˌənɪnˈtɛnʃnəli'] without intention; in an unintentional manner.
Words that Rhyme with Unintentionally
Example sentences of the word unintentionally
Bottles can melt when they are unintentionally exposed to high enough temperatures to do the trick.
An unintentionally left-over part could be cause for a major safety concern over time.