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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
was unfamiliar with
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "was unfamiliar with" is correct and usable in written English.
It can be used to indicate a lack of knowledge or experience regarding a particular subject or situation. Example: "When I first started the job, I was unfamiliar with the software we were using."
✓ Grammatically correct
News & Media
Wiki
Academia
Alternative expressions(18)
had no knowledge of
was unaware of
was ignorant of
was oblivious to
was new to
lacked experience in
was a stranger to
had not faced
had no exposure to
not dealt with
had not encountered
never dealt with
had not encountered before
had never encountered before
had no prior experience with
had no mastery of
failed to grasp
did not comprehend
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
60 human-written examples
He was unfamiliar with both services.
News & Media
I was unfamiliar with that last one.
News & Media
She was unfamiliar with Choward's mints.
News & Media
But Officer Grossman was unfamiliar with the word.
News & Media
Ms. Mesinai said he was unfamiliar with current events.
News & Media
Not that Mr. Brody was unfamiliar with intensive preparation.
News & Media
"I never studied theater and was unfamiliar with the terminology".
News & Media
I was asked to perform a procedure I was unfamiliar with.
News & Media
Mr. Hance said he was unfamiliar with the allegations and declined to comment on them.
News & Media
Mr. Spence has said she was unfamiliar with the New York investments.
News & Media
South Korea's Ministry of Unification said it was unfamiliar with Son's case.
News & Media
Expert writing Tips
Best practice
When using this phrase, ensure the subject clearly indicates who or what is unfamiliar with something to avoid ambiguity.
Common error
Avoid using "was unfamiliar with" when a stronger term like "misunderstood" or "disagreed with" is more accurate. The phrase should genuinely reflect a lack of prior knowledge, not a difference in interpretation or opinion.
Source & Trust
86%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "was unfamiliar with" functions as a descriptive adjective phrase followed by a preposition, indicating a state of lacking knowledge or experience regarding a specific subject. Ludwig's examples showcase its use in various contexts, from personal experiences to professional situations.
Frequent in
News & Media
70%
Wiki
12%
Academia
7%
Less common in
Science
6%
Formal & Business
4%
Reference
1%
Ludwig's WRAP-UP
In summary, the phrase "was unfamiliar with" is a common and grammatically correct way to express a lack of knowledge or experience. As confirmed by Ludwig, it is widely used in news, academic, and general contexts. When using this phrase, consider the level of formality required and choose synonyms like "was unacquainted with" or "had no knowledge of" to suit the specific situation. Avoid using it when a stronger term indicating misunderstanding or disagreement is more appropriate.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
was unacquainted with
Replaces "unfamiliar" with "unacquainted", suggesting a lack of personal experience or knowledge.
was unaware of
Highlights a lack of consciousness or realization regarding something.
had no knowledge of
Indicates a complete absence of information about something.
didn't know about
A simpler, more informal way of expressing a lack of knowledge.
was ignorant of
Suggests a lack of awareness or understanding, potentially implying a negative connotation.
was oblivious to
Implies a lack of perception or attention towards something, suggesting it might have been obvious to others.
had never encountered
Emphasizes a complete lack of prior experience or exposure to something.
was new to
Indicates recent exposure or introduction to something.
lacked experience in
Focuses on the absence of practical skill or expertise in a particular area.
was a stranger to
Implies a lack of familiarity and possibly discomfort or alienation.
FAQs
How can I use "was unfamiliar with" in a sentence?
You can use "was unfamiliar with" to indicate a lack of knowledge or experience regarding a particular topic. For example, "She was unfamiliar with the local customs when she first arrived".
What are some alternatives to "was unfamiliar with"?
Alternatives include "was unacquainted with", "had no knowledge of", or "was unaware of", depending on the specific nuance you want to convey.
Is it better to say "was unfamiliar with" or "didn't know about"?
"Was unfamiliar with" is generally more formal and polite. "Didn't know about" is more informal and suitable for casual conversation. The best choice depends on the context and your audience.
What's the difference between "was unfamiliar with" and "was ignorant of"?
"Was unfamiliar with" simply indicates a lack of knowledge. "Was ignorant of" /s/was+ignorant+of implies a lack of knowledge that is potentially blameworthy or undesirable, suggesting a need to be better informed.
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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
4.6/5
Expert rating
Real-world application tested