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
prior appointment
Grammar usage guide and real-world examplesUSAGE SUMMARY
"prior appointment" is a correct and usable phrase in written English.
It is generally used to refer an appointment that happened before another one. For example: "I had a prior appointment with the doctor last week."
✓ Grammatically correct
News & Media
Academia
Science
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
37 human-written examples
And no prior appointment is needed!
News & Media
"The man attended by prior appointment and was not arrested.
News & Media
They are accessible only via prior appointment and just 500 people looked at the collection in the last year.
News & Media
It's considered annoying — lame, even — to pick up the phone and call someone without a prior appointment.
News & Media
Visitors to the University are not allowed to enter without a prior appointment or registration.
Academia
When I called him this week, he apologized for having to end the interview because of a prior appointment.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
23 human-written examples
Pediatric patients (< 18 years) presenting without prior appointments during the 4 weeks in July and August 2012 were invited to enroll; patients presenting for routine check-ups and vaccinations without appointment were excluded.
Prior appointments were made before travelling to the respective districts to conduct the discussions.
Science
In addition, educational messages can be targeted during prior appointments, based on automated profiling of future failure risk.
Science
Thirty-four patients (6.8%; 16 rushed for time, 12 privacy reason, and 6 prior appointments) refused to answer the questionnaire.
Science
The face to face individual interviews were conducted in the interviewees' office during working hours, for which prior appointments were obtained.
Expert writing Tips
Best practice
When scheduling something and referring back to a previous arrangement, use "prior appointment" to clearly indicate that the arrangement was made beforehand. This helps avoid confusion about the order of events or commitments.
Common error
Avoid using "prior appointment" when referring to the most recent appointment. "Prior" indicates an appointment that occurred before the current one, not the current one itself.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "prior appointment" functions as a noun phrase, often serving as an object of a preposition (e.g., "by prior appointment", "without prior appointment") or as a modifier. Ludwig AI confirms its grammatical correctness and usability. This phrase is used to indicate that an arrangement was made in advance.
Frequent in
Science
38%
News & Media
32%
Academia
30%
Less common in
Formal & Business
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "prior appointment" is a grammatically correct and commonly used noun phrase indicating something scheduled in advance. As Ludwig AI confirms, it functions to convey that an arrangement was made at an earlier time, often impacting availability or access. While applicable across various contexts, it is most frequently found in scientific, news, and academic sources. Alternatives such as "previous arrangement" or "scheduled consultation" can be used depending on the desired nuance. Remembering to use "prior" to refer to an earlier, not current, appointment is crucial to avoid confusion.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
previous arrangement
Replaces 'appointment' with 'arrangement', emphasizing the act of organizing beforehand.
prearranged meeting
Uses 'meeting' instead of 'appointment' and 'prearranged' instead of 'prior', highlighting the planned nature.
scheduled consultation
Emphasizes the consultation aspect of the appointment and uses 'scheduled' to indicate it was planned earlier.
advance booking
Focuses on the act of booking in advance, common in service contexts.
established schedule
Highlights that a schedule was set up beforehand.
prescheduled time
Rephrases to emphasize that a specific time was scheduled in advance.
earlier commitment
Indicates a commitment made at an earlier time, implying a conflict or scheduling priority.
existing engagement
Implies a prior agreement or obligation already in place.
reserved slot
Emphasizes the reservation aspect of the appointment, indicating a specific time was set aside.
previously scheduled visit
Uses 'visit' in place of appointment and adds 'previously scheduled' to convey the prior arrangement.
FAQs
How can I use "prior appointment" in a sentence?
You can use "prior appointment" to indicate that something was scheduled or arranged in advance. For example, "Due to a prior appointment, I am unable to attend the meeting".
What's the difference between "prior appointment" and "previous appointment"?
"Prior appointment" and "previous appointment" are largely synonymous and can be used interchangeably to refer to an appointment that happened before the current time or event.
What can I say instead of "prior appointment"?
Alternatives include "prearranged meeting", "scheduled consultation", or "advance booking", depending on the specific context.
Is it correct to say "without prior appointment"?
Yes, it is perfectly correct. It indicates that something can be accessed or done without needing to schedule it in advance, such as "Walk-in Centres are primarily nurse-led primary care facilities for illness and injuries without need for prior appointment".
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
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested