TOEIC Link Part 5: fortuitous versus fortunate
Fortuitous and fortunate share the same opening syllables and both carry a positive ring, but they answer different questions. Fortuitous describes something that happens by chance or accident — the emphasis is on the unplanned nature of the event. Fortunate describes something lucky, favorable, or advantageous — the emphasis is on the good outcome. Part 5 rewards you for asking whether the blank stresses how something came about (unexpectedly) or how good it was (a piece of luck). For the wider set of look-alike traps, start with the commonly confused word pairs master index.
The core rule: by chance versus lucky
- fortuitous (adjective) = happening by chance, accidental, unplanned. A fortuitous meeting in the lobby led to the partnership. It answers did it happen by accident? Anchor it with the sense of fortune as chance — the word points to the randomness of an event, whether or not the result is good.
- fortunate (adjective) = lucky, favored by good fortune, advantageous. The firm was fortunate to secure the contract before prices rose. It answers was it a stroke of luck? Anchor it with fortune as luck — the word rates the outcome as favorable, regardless of how it came about.
A quick anchor: fortuitous = by chance; fortunate = lucky. One describes the manner of an event, the other judges the outcome as good.
Why Part 5 likes this pair
The two words open with the same letters and both feel upbeat, so the wrong option slips past a fast reader. The item is decided by which idea the sentence emphasizes: an accidental or unplanned happening points to fortuitous, while a lucky or favorable result points to fortunate.
The two teams' __ encounter at the conference sparked an unplanned collaboration.
The blank stresses an unplanned, chance meeting, so it needs fortuitous.
The company was __ to have signed the lease before rents climbed sharply.
The blank rates the outcome as lucky, so it needs fortunate.
Spotting the clue
Check whether the blank emphasizes chance or good luck:
- Is the word describing something that happened by accident or was unplanned? → choose fortuitous (a fortuitous timing, a fortuitous discovery, a fortuitous delay that avoided the storm).
- Is the word rating an outcome as lucky or favorable? → choose fortunate (we were fortunate, a fortunate position, fortunate enough to qualify).
A quick test: can you replace the word with "by chance" or "accidental"? Then it is fortuitous. Can you replace it with "lucky" or "favored"? Then it is fortunate. In TOEIC business scenarios, fortuitous often describes an unplanned meeting, a chance timing, or a coincidence that turned out well, while fortunate appears when a report or speaker judges a company, team, or individual to be lucky in its circumstances. Watch the emphasis: the manner of an event points to fortuitous; the quality of the result points to fortunate. For more pairs where a shared root splits into two meanings, see the business and finance confusable pairs study guide. Another luck-and-outcome trap worth reviewing next is luxuriant versus luxurious.