Synonyms of fortuitous in English:

fortuitous


See definition of fortuitous

adjective

1‘his success depended on entirely fortuitous events’

SYNONYMS

chance, unexpected, unanticipated, unpredictable, unforeseen, unlooked-for, serendipitous, casual, incidental, coincidental, haphazard, random, accidental, inadvertent, unintentional, unintended, unplanned, unpremeditated

ANTONYMS

predictable

2‘United were saved by a fortuitous penalty’

SYNONYMS

lucky, fortunate, providential, advantageous, timely, opportune, serendipitous, expedient, heaven-sent, auspicious, propitious, felicitous, convenient, apt

informal fluky

British informal jammy