Longman Dictionary of Contemporary English homepage

Date: 1600-1700
Language: Latin
Origin: advertens, present participle of advertere 'to turn your mind to'

inadvertently

adverb
     
in‧ad‧vert‧ent‧ly
without realizing what you are doing [= accidentally]:
Viruses can be spread inadvertently by email users.
Robinson's name was inadvertently omitted from the list.
inadvertent adjective:
inadvertent exposure to chemicals
inadvertence noun [uncountable]

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