Synonyms of unintentional in English:

unintentional


See definition of unintentional

adjective

1‘I assure you, the insult was unintentional’

SYNONYMS
unintended, accidental, inadvertent, involuntary, unwitting, unthinking, unmeant, unplanned, unpremeditated, unexpected, unforeseen, fortuitous, chance, coincidental, serendipitous, unconscious, subconscious
ANTONYMS

intentional, deliberate