The definition of chance is accidental or not expected or planned.
Not known or established; questionable:
(Biol.) Tending to deviate in some way from the type; aberrant
Capable of being relied on; dependable:
That cannot be doubted, questioned, or disputed; absolutely true; certain
(Music) Of an accidental
The definition of casual is someone or something relaxed, occasional, not planned or informal.
The definition of contingent is something that depends on something else happening, or something that is possible or by chance.
The definition of fortuitous is happening by chance.
Not deliberate or considered; unintentional:
Find another word for fluky. In this page you can discover 20 synonyms, antonyms, idiomatic expressions, and related words for fluky, like: capricious, chance, shifting, uncertain, unsteady, variable, certain, sure, planned, designed and accidental.