chanceable

From chance +‎ -able.

chanceable (comparative more chanceable, superlative most chanceable)

1. (obsolete) Happening by chance; accidental
   • 1595, Philip Sydney, An Apology for Poetry:

     And so far were they carried into the admiration thereof, that they thought in the chanceable hitting upon any such verses, great foretokens of their following fortunes were placed.

• See also Thesaurus:accidental

• “chanceable”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.