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
a significantly decrease
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a significantly decrease" is not correct in English.
It should be "a significant decrease." You can use the corrected phrase when discussing a notable reduction in quantity, size, or degree. Example: "There was a significant decrease in sales this quarter compared to the last."
⚠ May contain grammatical issues
Alternative expressions(20)
a significant decrease
a relative decrease
a subsequent decrease
a sharp fall
a further decrement
a complementary decrease
a deepening reduction
a further decline
a steep decline
a continued decline
a further reduce
a greater decrease
a further decrease
an exacerbated decrease
a future decrease
a considerable drop
a marked decline
a considerable decrease
a successive decrease
a dramatic downturn
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
30 human-written examples
So, an increase of CMC concentration produces a significantly decrease of the β-relaxation strength and an increase of the dc-conductivity.
Science
Recently, in two randomized studies, a significantly decrease of recurrence with hazard ratio near of 0.70 has been demonstrate with perioperative chemotherapy.
Science
After blocked with 6-mercapto-1-hexanol, the probe DNA is bound with the addition of target DNA to form the double-stranded structure on the electrode surface, which leads to a significantly decrease of peak current of electrochemical indicator [Fe CN 6]3−/4−.
Owing to the positive effects of LaNiO3 surface reorganization layer, the modified Li1.2Mn0.6Ni0.2O2 samples exhibit superior high capacity retention (more than 87.7% after 200 cycles) with a significantly decrease in voltage decay, which exhibit an improvement over the state of art.
Science
LPS infusion resulted in a significantly decrease in jejunal microcirculation in wildtype and iNOS-/ mice.
Similar to this, Fv/Fm showed a significantly decrease after 14 d exposure to 300 mM NaCl.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
30 human-written examples
PTSD subjects had a significantly decreased ACTH response to metyrapone compared to controls.
Science & Research
Particularly, W24 displays a significantly decreased charge recombination rates.
Science
The overall results of this meta-analysis provide evidence that maternal folate supplementation is associated with a significantly decreased risk of CHDs (RR = 0.72, 95% CI: 0.63 0.82).
Science & Research
Electrochemical impedance spectra revealed a significantly decreased concentration polarization loss compared to the single-channel geometry, which we believe is the reason for this increase.
Science & Research
Quantification analysis revealed a significantly decreased average blood perfusion (Fig. 1E) and the amplitude (Fig. 1F) and frequency (Fig. 1H) of pancreatic islet microvascular vasomotion in SHRs.
Science & Research
Expert writing Tips
Best practice
When describing a reduction, use "a significant decrease" instead of the grammatically incorrect "a significantly decrease". Ensure the adjective form "significant" modifies the noun "decrease".
Common error
Avoid using the adverb "significantly" directly before the noun "decrease". Adverbs modify verbs, adjectives, or other adverbs, not nouns. Use the adjective "significant" instead to correctly modify the noun.
Source & Trust
60%
Authority and reliability
1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a significantly decrease" is grammatically incorrect. The correct form, "a significant decrease", functions as a noun phrase, where the adjective "significant" modifies the noun "decrease". As Ludwig AI points out, the original phrase violates basic grammar rules.
Frequent in
Science
0%
News & Media
0%
Formal & Business
0%
Less common in
Science
0%
News & Media
0%
Formal & Business
0%
Ludwig's WRAP-UP
The phrase "a significantly decrease" is a common error in English grammar. The correct form is "a significant decrease", where the adjective "significant" modifies the noun "decrease". As Ludwig AI indicates, the original phrasing is grammatically incorrect. To express this concept, one can use alternatives such as "a substantial reduction" or "a marked decline". Remember to use adjectives to modify nouns and adverbs to modify verbs, adjectives, or other adverbs. This ensures clarity and grammatical correctness in your writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
a significant decrease
Corrects the grammatical error by using the adjective "significant" instead of the adverb "significantly".
a substantial reduction
Replaces "decrease" with the synonym "reduction" and "significantly" with "substantial" for emphasis.
a marked decline
Uses "decline" as a synonym for "decrease" and "marked" to indicate a noticeable change.
a considerable drop
Employs "drop" as a more informal synonym for "decrease" and "considerable" to highlight the extent of the reduction.
a noticeable lessening
Replaces "decrease" with "lessening" and "significantly" with "noticeable" to describe a reduction that is easily observed.
a sharp fall
Uses "fall" to denote a sudden decrease and "sharp" to emphasize the speed or intensity of the reduction.
a dramatic downturn
Substitutes "decrease" with "downturn" to suggest a negative trend and "dramatic" for a large, impactful change.
a steep decline
Combines "decline" with "steep" to convey a rapid and significant reduction.
a major downturn
Uses "major" to indicate a substantial level of impact to the downturn or decrease.
a considerable lessening
Employs "lessening" as a synonym for "decrease" and "considerable" to describe a reduction that is easily observed.
FAQs
What is the correct way to say "a significantly decrease"?
The correct phrasing is "a significant decrease". The adjective "significant" should be used to modify the noun "decrease".
What are some alternatives to "a significant decrease"?
You can use alternatives such as "a substantial reduction", "a marked decline", or "a considerable drop" depending on the context.
Is there a difference between "a significant decrease" and "significantly decreased"?
Yes, "a significant decrease" refers to a noun phrase describing a reduction. "Significantly decreased" is a past participle used as an adjective, as in "prices are significantly decreased".
When should I use "significant" versus "significantly"?
"Significant" is an adjective used to describe nouns (e.g., "a significant change"). "Significantly" is an adverb used to modify verbs, adjectives, or other adverbs (e.g., "prices significantly decreased").
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
60%
Authority and reliability
1/5
Expert rating
Real-world application tested