As adjectives the difference between fortuitous and planned
is that fortuitous is happening by chance; coincidental or accidental while planned is existing or designed according to a plan.
As a verb planned is
(plan).
fortuitous
English
Adjective
(
en adjective)
Happening by chance; coincidental or accidental.
Happening by a lucky chance; lucky or fortunate.
(legal) Happening independently of human will.
Derived terms
* fortuitously
* fortuitousness
planned
English
Verb
(head)
(plan)
Adjective
(
en adjective)
existing or designed according to a plan
Antonyms
* unplanned
Derived terms
* planned change
* planned obsolescence
* planned parenthood