accidentally 20 antonyms and opposites of accidentally. Adv — By chance or mistake, without intending to. Synonyms for accidentally adventitiously by accident by chance fortuitously on accident Antonyms for accidentally intentionally deliberately designedly on purpose purposely advisedly by choice by design advertently consciously knowingly purposefully selfconsciously strategically studiously volitionally voluntarily wilfully with awareness wittingly ← Back to the full definition of accidentally
