coincidental[adjective]Synonyms: chance, accidental, casual, fluky
(informal), fortuitous, unintentional, unplanned
[TahlilGaran] English Synonym Dictionary ▲
co‧in‧ci‧den‧tal AC /kəʊˌɪnsəˈdentl, kəʊˌɪnsɪˈdentl $ koʊ-/
adjective happening completely by chance without being planned ⇒
coincidencepurely/completely/entirely coincidental
Any similarity between this film and real events is purely coincidental.—coincidentally adverb [sentence adverb]:
We have become profitable. Not coincidentally, we have only half as many employees as we did in 1988. [TahlilGaran] Dictionary of Contemporary English ▲