“Random” can mean selected by chance, lacking a pattern, unpredictable, incidental, or simply miscellaneous. These alternatives match different parts of that meaning range and should not be treated as interchangeable.
Which Alternative to “Random” Fits Best?
Here are 13 options for “Random,” with the distinction and a natural example for each.
As a quick guide, Arbitrary, Haphazard, Chance, and Accidental cover some of the most common wording choices around “Random.” The remaining options are more useful when the sentence calls for a narrower sense, a different register, or a particular grammatical setting. The examples below show those distinctions in ordinary sentences.
- Arbitrary
- Haphazard
- Chance
- Accidental
- Unplanned
- Unpredictable
- Erratic
- Unsystematic
- Miscellaneous
- Unselected
- Spontaneous
- Serendipitous
- Aimless
Arbitrary
Arbitrary works when the intended sense of “Random” centers on chance, lack of pattern, unpredictability, or unsystematic choice; it may carry a more specific tone or implication.
Example: The software selected an arbitrary starting point within the permitted range.
Haphazard
Haphazard overlaps with “Random” in contexts involving chance, lack of pattern, unpredictability, or unsystematic choice, but it is not interchangeable in every sentence.
Example: The files were stored in a haphazard order with no consistent system.
Chance
Choose Chance when the sentence is mainly about chance, lack of pattern, unpredictability, or unsystematic choice and this wording matches the level of precision you need.
Example: A chance meeting at the conference led to the collaboration.
Accidental
Accidental is a useful substitute where “Random” refers to chance, lack of pattern, unpredictability, or unsystematic choice, with its exact nuance shaped by the surrounding sentence.
Example: The duplicate entry was accidental rather than intentional.
Unplanned
Unplanned works when the intended sense of “Random” centers on chance, lack of pattern, unpredictability, or unsystematic choice; it may carry a more specific tone or implication.
Example: Their unplanned stop became the best part of the trip.
Unpredictable
Unpredictable overlaps with “Random” in contexts involving chance, lack of pattern, unpredictability, or unsystematic choice, but it is not interchangeable in every sentence.
Example: The weather remained unpredictable throughout the week.
Erratic
Choose Erratic when the sentence is mainly about chance, lack of pattern, unpredictability, or unsystematic choice and this wording matches the level of precision you need.
Example: The signal became erratic whenever the equipment overheated.
Unsystematic
Unsystematic is a useful substitute where “Random” refers to chance, lack of pattern, unpredictability, or unsystematic choice, with its exact nuance shaped by the surrounding sentence.
Example: The early search was unsystematic and missed several relevant records.
Miscellaneous
Miscellaneous works when the intended sense of “Random” centers on chance, lack of pattern, unpredictability, or unsystematic choice; it may carry a more specific tone or implication.
Example: The final drawer contained miscellaneous cables and adapters.
Unselected
Unselected overlaps with “Random” in contexts involving chance, lack of pattern, unpredictability, or unsystematic choice, but it is not interchangeable in every sentence.
Example: The analysis used an unselected sample drawn automatically from the full list.
Spontaneous
Choose Spontaneous when the sentence is mainly about chance, lack of pattern, unpredictability, or unsystematic choice and this wording matches the level of precision you need.
Example: They made a spontaneous decision to stay for another day.
Serendipitous
Serendipitous is a useful substitute where “Random” refers to chance, lack of pattern, unpredictability, or unsystematic choice, with its exact nuance shaped by the surrounding sentence.
Example: A serendipitous discovery revealed an unexpected connection between the two datasets.
Aimless
Aimless works when the intended sense of “Random” centers on chance, lack of pattern, unpredictability, or unsystematic choice; it may carry a more specific tone or implication.
Example: He took an aimless walk through the city after lunch.
Choosing the Right Wording for “Random”
Use “chance” for accidental occurrence and “unpredictable” or “erratic” for uncertain behaviour. “Haphazard” and “unsystematic” imply lack of method, while “miscellaneous” means varied rather than statistically random.