Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
reasonable period
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "reasonable period" is correct and usable in written English.
It can be used to refer to a time frame that is fair and sensible in a given context, often in legal or formal documents. Example: "The tenant must provide notice to the landlord within a reasonable period before vacating the property."
✓ Grammatically correct
News & Media
Science
Formal & Business
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
57 human-written examples
"What would you consider a reasonable period of time?" Benn asked, reasonably.
News & Media
We intend to make every single creditor whole over a reasonable period of time".
News & Media
And sales should run only for a reasonable period if they are not to be misleading.
News & Media
The court says they must be allowed in within a "reasonable" period of time.
News & Media
The Secretary of State believes that a reasonable period of residency would be at least two years".
News & Media
He gave Ms. Byron-Marasek "a reasonable period of time" to move the tigers to properly licensed compounds elsewhere.
News & Media
In a letter he asked the union "to permit the retention of critical data for a reasonable period".
News & Media
When it hadn't been retrieved in a reasonable period of time, he ambled over and stooped to pick it up.
News & Media
The subpoenas were limited to a reasonable period of time and did not seek the content of any calls".
News & Media
She and I sold our house within a reasonable period and signed an agreement on everything financial.
News & Media
This means that they cannot be cured within a reasonable period of time while staying within the euro.VI.
News & Media
Expert writing Tips
Best practice
When using "reasonable period" in legal or formal contexts, ensure the specific duration is clearly defined or easily inferred to avoid ambiguity. If possible, quantify it (e.g., "within a reasonable period, not exceeding 30 days").
Common error
Do not assume everyone shares the same understanding of what constitutes a "reasonable period". The interpretation can be subjective. Always provide context or specific parameters to guide interpretation and avoid disputes.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "reasonable period" functions as a noun phrase, where "reasonable" modifies the noun "period". It generally acts as an adverbial modifier, specifying the duration or extent of time relevant to a particular action, event, or condition. Ludwig AI confirms that this phrase is correct and usable in written English.
Frequent in
News & Media
68%
Science
18%
Formal & Business
14%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "reasonable period" is a commonly used and grammatically correct term to denote a timeframe considered fair and appropriate. As Ludwig AI states, it is versatile and applicable across various contexts, including news, science, and business. To avoid ambiguity, it's best practice to provide clear parameters or quantify the period whenever possible. While alternatives like "reasonable timeframe" or "fair duration" exist, "reasonable period" remains a reliable and widely understood choice.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
reasonable timeframe
Changes noun from "period" to "timeframe", implying a slightly more specific duration.
fair duration
Replaces "reasonable" with "fair" and "period" with "duration", emphasizing impartiality and length.
suitable length of time
Substitutes "reasonable" with "suitable" and expands "period" to "length of time", highlighting appropriateness.
acceptable duration
Replaces "reasonable" with "acceptable", focusing on the permissibility of the time span.
appropriate interval
Uses "appropriate" instead of "reasonable" and "interval" instead of "period", suggesting a specific segment in time.
adequate time
Replaces "reasonable period" with "adequate time", focusing on sufficiency for a given purpose.
sensible timeframe
Uses "sensible" for "reasonable", conveying practicality and good judgment.
realistic duration
Replaces "reasonable" with "realistic", highlighting feasibility within given constraints.
viable length of time
Substitutes "reasonable" with "viable", emphasizing capability of surviving or succeeding.
justifiable period
Uses "justifiable" instead of "reasonable", suggesting defensibility and validity.
FAQs
How can I use "reasonable period" in a sentence?
You can use "reasonable period" to indicate a timeframe that is fair and appropriate for a specific action or event. For example, "The customer is entitled to a refund if the product is returned within a "reasonable period" of time".
What can I say instead of "reasonable period"?
Alternatives include "reasonable timeframe", "fair duration", or "suitable length of time", depending on the specific context and nuance you wish to convey.
What factors determine what is considered a "reasonable period"?
The determination of a "reasonable period" depends on the specific circumstances, including the nature of the task, industry standards, and any relevant legal precedents. It's not a fixed duration but rather a flexible concept evaluated on a case-by-case basis.
Is there a legal definition of "reasonable period"?
While there isn't a universal legal definition, the concept of a "reasonable period" is frequently invoked in legal contexts. Courts often consider what a prudent person would deem appropriate under similar circumstances. Specifying a duration can mitigate the risk of legal disputes.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested