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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
indefinite basis
Grammar usage guide and real-world examplesUSAGE SUMMARY
'indefinite basis' is a correct and usable phrase in written English.
It is used to describe a duration of time or a state of affairs which is not fixed or definite. For example, "They agreed to work together on an indefinite basis."
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(20)
temporary basis
unspecified duration
open-ended arrangement
as needed
unfixed term
temporary arrangement
subject to change
provisional arrangement
ad hoc fashion
unfettered basis
permanent basis
unscheduled basis
uncertain basis
unlimited basis
precise basis
vague basis
unspecified basis
specific basis
unknown basis
occasional basis
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
14 human-written examples
The team responded to the incident by suspending Ball and the two other players who were arrested, Cody Riley and Jalen Hill, on an indefinite basis.
News & Media
All patients were informed of the importance of returning, after completing radiotherapy, for regular follow-up dental examinations on an indefinite basis.
These exiles, many of whom were labeled "antisocial" but not accused of having committed any crime, were to remain in cages in the United States on an indefinite basis, with no prospects of being set free.
News & Media
Broadcom named Alan E. Ross Alan E. Ross interim chief operating officer on an indefinite basis.
News & Media
Harford also claimed Uber was positioned to be able to invest in its chosen growth markets on "an indefinite basis", thanks to having reached profitability in other markets.
News & Media
But the ECJ will continue to play a role, because this agreement says UK courts will have to pay "due regard" to its decisions on an indefinite basis.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
46 human-written examples
According to the UNCITRAL Model Law of 2011, a framework agreement procedure may be used when the procuring entity expects the need for procurement to arise on a repeated, indefinite, or urgent basis during a given period of time.
Unless Mr. Obama wants to assert the untenable position that the war on terror or the war on Al Qaeda continue everywhere and indefinitely, then the legal basis for further indefinite detention will end.
News & Media
One of the main safety goals is to achieve indefinite cooling following design basis accidents (DBAs) using atmosphere air as ultimate heat sink.
Science
It would resist using the post- 9/11 and Iraq situation to keep alleged suspects in indefinite detention on the basis of secret evidence they have not been allowed to see and cannot challenge.
News & Media
The argument is that the potential threat of injury, representing as it does only a possibility for the indefinite future, is no basis for a decree in an interstate suit since we cannot issue declaratory decrees.
Academia
Expert writing Tips
Best practice
Combine "indefinite basis" with qualifiers to add nuance. For example, 'The project is on an indefinite basis, pending further funding' clarifies the reason for the uncertain duration.
Common error
Avoid treating something on an "indefinite basis" as permanent. The phrase implies uncertainty, so always be prepared for potential changes or termination of the arrangement.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "indefinite basis" functions as an adverbial phrase, modifying a verb or clause to indicate the duration or condition under which an action is performed or a state exists. It specifies that something is happening without a fixed or predetermined endpoint.
Frequent in
News & Media
46%
Science
33%
Formal & Business
7%
Less common in
Academia
2%
Encyclopedias
2%
Wiki
0%
Ludwig's WRAP-UP
The phrase "indefinite basis" is a common and grammatically correct way to describe something lacking a fixed duration, as confirmed by Ludwig. It's found across diverse contexts, from news and media to science and formal business settings. To avoid ambiguity, ensure the context clearly identifies what is subject to the indefinite condition, and be mindful that it implies potential changes. Related phrases include "unspecified duration" and "open-ended arrangement". It is important to be accurate when employing this expression and, as Ludwig AI confirms, to make the writing more precise.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
unspecified duration
Focuses on the lack of a defined timeframe.
unfixed term
Emphasizes the absence of a predetermined period.
open-ended arrangement
Highlights the flexible nature of the agreement.
temporary arrangement
Specifies an agreement with potential for changes in duration.
subject to change
Stresses the possibility of alterations over time.
as needed
Emphasizes adaptability to evolving requirements.
provisional arrangement
Indicates a preliminary agreement subject to finalization.
ad hoc fashion
Highlights the spontaneous and unplanned character of the activity.
fluid timeline
Underscores the flexible nature of the schedule.
long-term basis
Highlights the unspecified character of a long lasting action.
FAQs
How can I use "indefinite basis" in a sentence?
You can use "indefinite basis" to describe something that is not fixed or definite. For example: "The team responded to the incident by suspending Ball and the two other players who were arrested, Cody Riley and Jalen Hill, on an indefinite basis."
What's the difference between "temporary basis" and "indefinite basis"?
"Temporary basis" suggests a known, limited duration, while "indefinite basis" implies an unknown or uncertain duration.
What are some alternatives to saying "indefinite basis"?
Depending on the context, you could use phrases like "unspecified duration", "open-ended arrangement", or "as needed".
Is it correct to use "indefinite basis" in formal writing?
Yes, "indefinite basis" is appropriate for formal writing. It clearly conveys that something is not determined or fixed in duration. Ludwig confirms that the expression is valid.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested