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
perfectly horizontal
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "perfectly horizontal" is correct and usable in written English.
It can be used to describe something that is completely level or flat, without any tilt or angle. Example: "The shelf was installed perfectly horizontal, ensuring that all the items placed on it would remain stable."
✓ Grammatically correct
News & Media
Science
Wiki
Alternative expressions(16)
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
33 human-written examples
You can assume that the surface of the cake is perfectly horizontal.
News & Media
The rig trembled and groaned, and within a minute it was perfectly horizontal.
News & Media
Woodpeckers searching for insects will create almost perfectly horizontal rows of holes along the siding following the core gaps.
Academia
The walls are perfectly smooth, perfectly vertical and the ceiling is a perfectly horizontal slab," said Le Blanc.
News & Media
The vial is set at either a zero- or 90-degree angle, which allows the user to tell if a plane is perfectly horizontal or vertical.
News & Media
The level shows whether a surface is perfectly horizontal or vertical, and the trisquare tests the right angle between adjacent surfaces.
Encyclopedias
Human-verified similar examples from authoritative sources
Similar Expressions
27 human-written examples
The discrepancy can be attributed to several factors including reservoir heterogeneity and non-perfectly horizontal wellbores.
We paused to admire the pugnacious set of its jaw and the perfectly drawn horizontal stripes on its gleaming sides.
News & Media
It is shown that the optimized patterns for implants of heterogeneous porous media, occupying approximately only 5% of the overall volume, can drastically delay the steady-unsteady transition of the 2D natural convection flow in a square differentially heated cavity with thermally perfectly conducting horizontal walls.
This step is done so that you can draw perfectly parallel horizontal lines from one side to the other.
Wiki
Try searching your hardware store for a laser level - they'll paint a perfectly-straight horizontal line on the wall with a laser that you can use to line your pictures up perfectly.
Wiki
Expert writing Tips
Best practice
When describing technical setups or precise measurements, use "perfectly horizontal" to convey accuracy and eliminate ambiguity. For instance, specify that equipment is "perfectly horizontal" to ensure consistent experimental conditions.
Common error
Avoid using "horizontal" when you actually mean "perfectly horizontal". "Horizontal" simply indicates a direction; "perfectly horizontal" specifies a precise, level alignment. Be precise in your language, especially in technical or scientific writing.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "perfectly horizontal" functions as an adverbial modifier describing the degree to which something is horizontal. It specifies the horizontal orientation, indicating a precise and accurate level. Ludwig AI confirms its correct usage.
Frequent in
News & Media
31%
Science
31%
Wiki
20%
Less common in
Encyclopedias
6%
Formal & Business
3%
Academia
3%
Ludwig's WRAP-UP
In summary, "perfectly horizontal" is a grammatically correct and frequently used phrase that denotes a precise and accurate horizontal alignment. Ludwig AI's analysis and the provided examples confirm its versatility across various contexts, from scientific literature to general descriptions. When using this phrase, ensure that the situation requires such precision, and avoid the assumption that "horizontal" inherently implies perfection. This analysis offers guidance on usage, alternatives, and potential pitfalls, aiding in clear and effective communication.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
absolutely level
Focuses on the absolute evenness of a surface.
completely flat
Emphasizes the absence of any curvature or unevenness.
dead level
An informal term indicating perfect levelness, often used in construction.
precisely aligned horizontally
Highlights the accurate horizontal positioning of an object.
exactly parallel to the horizon
Specifies the alignment relative to the horizon line.
perfectly even
Stresses the uniformity of a surface, implying it is also level.
true horizontal
Emphasizes the accuracy of the horizontal alignment.
flawlessly horizontal
Highlights the absence of any imperfections in the horizontal orientation.
horizontally aligned
A more general term that does not necessarily imply perfection.
perfectly planimetric
A technical term indicating a perfectly flat surface in a horizontal plane.
FAQs
How can I use "perfectly horizontal" in a sentence?
You can use "perfectly horizontal" to describe surfaces or objects that are completely level. For instance, "Ensure the table is perfectly horizontal before placing the delicate equipment on it."
What are some alternatives to saying "perfectly horizontal"?
You could use phrases like "absolutely level", "completely flat", or "dead level", depending on the context.
Is it redundant to say "perfectly horizontal"? Does "horizontal" already imply perfection?
No, it's not always redundant. "Horizontal" simply means parallel to the horizon. Adding "perfectly" specifies a precise, level alignment without any tilt or angle. Saying "the line is horizontal" doesn't guarantee it's "perfectly horizontal".
In what situations is it most important to specify something is "perfectly horizontal"?
It's crucial in contexts where precision matters, such as construction, scientific experiments, and engineering. For example, ensuring a surface is "perfectly horizontal" is vital for accurate measurements and stable setups.
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
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested