accidentally accidentally /ˌæksɪˈdɛntli/

adverb

1. () Without advance planning  ( by chance , circumstantially , accidentally , unexpectedly )
   without advance planning
    They met accidentally
   they met accidentally
   
2. Without intention; in an unintentional manner  ( accidentally , unintentionally )
   without intention; in an unintentional manner
    She hit him unintentionally
   she hit him unintentionally
   
3. Of a minor or subordinate nature  ( accidentally , incidentally )
   of a minor or subordinate nature
    These magnificent achievements were only incidentally influenced by Oriental models
   these magnificent achievements were only incidentally influenced by Oriental models