For example: " We ran into a fortuitous obstacle" - an unplanned problem; something you didn't plan for, and that was a coincidence when you were doing your project.
It may be well here to remark that with all beings there must be much fortuitous destruction, which can have little or no influence on the course of natural selection.
It's worth mentioning that Marinetti prefaced the formulas with a note saying that the vague quantities given should stimulate the imagination of Futurist cooks and may lead to fortuitous new dishes.
We have no indications of the mental qualities of Su Tungpo's mother's family, but a fortuitous combination of the blood of the Sus and the Chengs somehow produced the literary genius.
Borna Sosa's poor cross into the box sparked an Argentina counterattack, with Alvarez running three-quarters of the length of the pitch and, after two fortuitous ricochets in the box, buried the ball past Livakovic.
Many high ranking officials surrounding him, along with some of the general public, suspected his life was in danger from her plans to kill him and saw it as a fortuitous event.
It is not reasonable, however, that a sensible community should be content to remain dependent on such fortuitous and often wasteful mitigations when once we understand the influences upon which effective demand depends.