on random days

USAGE SUMMARY

"on random days" is a correct and usable phrase in written English.
You can use it to refer to unspecified days that occur in a scattered pattern rather than at regular intervals. For example, "I like to take a long walk on random days throughout the week."

✓ Grammatically correct

Science

News & Media

Wiki

Human-verified examples from authoritative sources

Exact Expressions

22 human-written examples

It is possible to reduce regression to the mean in a research setting by selecting random patients, asking them to come to the clinic on random days, and initiating treatment in one eye or in both eyes at random, regardless of whether the patient appears to need additional treatment.

BMC Ophthalmology

And they are hot and cold on random days.

The New York Times

Meals were given to the subjects from 07:00 to 09 00 on random days.

Nature

The animals were habituated to the injection procedure by administering saline on random days during the baseline period.

Nature

All subjects took 50 g carbohydrate load of reference food (white rice) at least two times (maximum three times) and test food once on random days.

Nature

Unlike most of the other jurors, Ms. Hollmen found respite in her work, choosing to return to her job in technology support for Dutchess County school districts on random days off.

The New York Times

Human-verified similar examples from authoritative sources

Similar Expressions

38 human-written examples

Healthy volunteers were evaluated on 2 random days: control and dantrolene (approximately 2.5 mg/kg plus a continuous infusion).

Stanford University

Investigators input data into the EmDOC Internet site at 10 00 p.m. on 7 random days each month.

The Journal of Emergency Medicine

Twenty-four-hour diet recalls were conducted on three random days during baseline and each intervention period.

Physiology & Behavior

Short-chain FOS were taken daily for 8 days followed by an intermittent intake mode on 28 random days to mimic noncontinuous intake.

Nutrition Research

But with so many options, actually booking a trip is a major hassle: attractions may close on seemingly random days, or may require reservations weeks in advance.

TechCrunch

Expert writing Tips

Best practice

Use "on random days" to indicate that events or actions occur without a set schedule. For example, "The system updates its database on random days to ensure data integrity."

Common error

While "on random days" is acceptable, it can sometimes be vague. If you know the approximate frequency (e.g., weekly, monthly), using a more specific term will improve clarity.

Linguistic Context

The phrase "on random days" functions primarily as an adverbial phrase, modifying a verb or clause to indicate when an action or event occurs. As Ludwig AI confirms, it is a correct and usable phrase.

Expression frequency: Common

Frequent in

News & Media

41%

Science

41%

Wiki

18%

Less common in

Formal & Business

0%

Encyclopedias

0%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "on random days" is a common and grammatically correct adverbial phrase used to indicate that events occur without a set schedule or pattern. As Ludwig AI confirms, it is a perfectly acceptable expression. Its usage spans various contexts, including news, science, and general writing, though it leans towards a neutral register. When using this phrase, ensure it accurately conveys the intended meaning of unpredictable timing, and consider whether a more specific term might enhance clarity. Related phrases like "sporadically" or "at irregular intervals" can offer alternatives for varied expression.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

sporadically

Replaces the phrase with a single adverb emphasizing infrequent and irregular occurrences.

at irregular intervals

Replaces "random days" with a more formal description of time intervals.

occasionally on different days

Adds emphasis to the variety of days and occasions.

some days without a pattern

Highlights the absence of a predictable sequence.

on unscheduled days

Emphasizes the lack of planning or a fixed timetable.

now and then on various days

Indicates infrequent events happening on different dates.

intermittently on diverse days

Suggests a stop-and-start pattern across varied dates.

on arbitrary days

Highlights the selection of days based on no particular rule.

certain days without notice

Emphasizes the lack of warning or predictability.

from time to time on different dates

Uses a common idiom to express occasional occurrences.

FAQs

How can I use "on random days" in a sentence?

You can use "on random days" to describe events that happen without a predictable pattern. For example, "The store offers surprise discounts "on random days" to attract customers."

What is a more formal alternative to "on random days"?

A more formal alternative to "on random days" is "at irregular intervals". For example, "Data backups are performed at irregular intervals".

Is it better to say "on random days" or "on specific days"?

The choice depends on the context. Use "on specific days" when referring to predetermined days, and "on random days" when the days are not predetermined and occur without a pattern.

What does "on random days" imply about the frequency of an event?

"On random days" implies that the event does not occur at a regular or predictable frequency. The event might happen rarely or frequently, but the timing is not consistent.