ACCIDENTAL Synonyms: 89 Similar and Opposite Words - Merriam-Webster
https://www.merriam-webster.com/thesaurus/accidental
WEBSynonyms for ACCIDENTAL: chance, inadvertent, unexpected, unintentional, incidental, casual, unintended, unplanned; Antonyms of ACCIDENTAL: intentional, deliberate, premeditated, intended, planned, inevitable, calculated, certain.
DA: 88 PA: 96 MOZ Rank: 12