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
was once considered
Grammar usage guide and real-world examplesUSAGE SUMMARY
"was once considered" is a correct and usable phrase in written English.
It is usually used to refer to something that is no longer accepted or true. For example, "Classical education was once considered the only acceptable form of education."
✓ Grammatically correct
News & Media
Encyclopedias
Science
Alternative expressions(19)
used to be regarded as
was formerly viewed as
used to be thought of as
is now considered
is no longer regarded as
was initially considered
has previously been considered
was formerly known as
had already been believed
had been anticipated
had been established
had already been given
had been characterized
had been defined
was understood to be
was formerly recognized
was previously known as
had been recognized
was previously celebrated
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
Friendster was once considered a hot property.
News & Media
This was once considered constitutionally dubious.
News & Media
SM: Zika was once considered an obscure virus.
Academia
Mobile telephony was once considered a niche market.
News & Media
Gluttony was once considered one of the seven deadly sins.
News & Media
Education was once considered purely a state and local matter.
News & Media
And what was once considered moderate – Snowe – no longer exists.
News & Media
(Hobby Lobby was once considered a long shot).
News & Media
Google was once considered a potential acquirer of Baidu.
News & Media
It was once considered a snub to authority.
News & Media
But mayoral control was once considered a naïve goal.
News & Media
Expert writing Tips
Best practice
Use "was once considered" to highlight a shift in perspective or understanding over time. This is particularly effective when contrasting past beliefs with current realities.
Common error
Don't use "was once considered" to describe something that is inherently transient or subjective. For example, stating "the color blue was once considered fashionable" is less impactful than "single-use plastic was once considered a miracle material".
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "was once considered" functions as a passive voice construction indicating a past perception or belief that has changed over time. Ludwig examples demonstrate its usage in highlighting shifts in opinions, practices, or values.
Frequent in
News & Media
75%
Encyclopedias
13%
Science
12%
Less common in
Formal & Business
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "was once considered" is a common and grammatically correct way to express a past belief or perception that has since changed. As Ludwig AI confirms, it's often used to highlight shifts in societal norms, understanding, or values, across various contexts. Predominantly featured in news and media, this phrase serves to contrast past viewpoints with current ones, providing context and showcasing evolution. When using "was once considered", remember to avoid stating the obvious and ensure that the contrasting element is impactful and relevant.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
used to be regarded as
Emphasizes past perception without implying present judgment; slightly more formal.
was formerly viewed as
Highlights a previous perspective, indicating a change in viewpoint.
used to be thought of as
Focuses on past beliefs or opinions, suggesting a shift in understanding.
was previously deemed
Implies a formal assessment or judgment that has since been altered.
once held the status of
Highlights a change in importance, relevance, or position.
was at one time seen as
Highlights a past perspective, indicating a change in viewpoint.
has since been reevaluated
Focuses on the act of reassessment and the resulting change in perception.
is now viewed differently
Emphasizes the contrast between past and present perspectives.
is no longer regarded as
Directly states the current lack of acceptance or belief.
initially garnered a different impression
This is most formal and is appropriate for a scholarly or formal writing context. It speaks to the initial impression of something and implies that there has been a shift from that initial view.
FAQs
How can I use "was once considered" in a sentence?
Use "was once considered" to introduce an idea, belief, or practice that has changed over time. For example, "Remote work "was once considered" a niche benefit, but is now increasingly common".
What are some alternatives to "was once considered"?
You can use alternatives like "used to be regarded as", "was formerly viewed as", or "used to be thought of as" to express a similar meaning.
Which is correct: "was once considered" or "is once considered"?
"Was once considered" is the correct past tense form to indicate something that was true in the past but is no longer the case. "Is once considered" is grammatically incorrect.
What's the difference between "was once considered" and "is now considered"?
"Was once considered" refers to a past belief or understanding, while "is now considered" refers to the current perspective. They are often used together to highlight a change in viewpoint, for example, "Spanking was once considered acceptable discipline, but is now considered harmful by many".
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