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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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decreased down

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "decreased down" is not correct and is redundant in written English.
You can use it when trying to describe a reduction in quantity or level, but it is better to avoid the redundancy. Example: "The temperature decreased down to freezing levels."

⚠ May contain grammatical issues

Science

News & Media

Human-verified examples from authoritative sources

Exact Expressions

58 human-written examples

However, it decreased down to a low of 39% under Obama.

As result the surface roughness can be decreased down to Ra = 0.04 µm.

The ventilation air methane concentration of working face greatly decreased down to about 0.3%.

For the present corrugation geometry, the critical Reynolds number is decreased down to about 4000.

A mechanism transition from the electric double-layer capacitance behavior to pseudo-capacitive behavior was observed as the film thickness decreased down to monolayer.

Owing to the fluxing ability of B2O3, the sintering temperature of the developed wall tile ceramics decreased down 70 °C 1050 °C, sintering temperature of the developed floor tile ceramics decreased down to 1130 °C, 65 °C lower compared to benchmarked commercial ceramics.

The other nation with a similar pattern is Spain, with a debt level that actually decreased — down to 66 percent of G.D.P., from 69 percent.

News & Media

The New York Times

The index then decreased down to (-,13) or (-,14) nT on 21UT.

In ARDS, N and A decreased down to PEEP 6 cmH2O and then remained stable at subsequent lower PEEP levels.

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Human-verified similar examples from authoritative sources

Similar Expressions

2 human-written examples

Conclusion: Our data demonstrate that homozygosity for Arg16, which in vitro is associated with decreased down-regulation of the β2AR, protects from preterm delivery.

It was noted that gene expression for one type of NMDA receptor proteins, that of Grin3a, was decreased (down-regulated genes, Nervous system development, Table 1).

Expert writing Tips

Best practice

Favor using "decreased", "reduced", or "fell" alone, as the word "down" is often redundant and weakens the sentence.

Common error

Avoid using "decreased down" as it is redundant. Choose either "decreased" or use another verb like "fell" or "dropped" to make your writing more concise.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

80%

Authority and reliability

2.8/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "decreased down" functions as a verb phrase indicating a reduction in quantity, level, or intensity. Ludwig's examples illustrate its use across various contexts, although it's considered redundant, according to Ludwig AI.

Expression frequency: Very common

Frequent in

Science

85%

News & Media

10%

Formal & Business

5%

Less common in

Encyclopedias

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "decreased down" is used to express a reduction, but is often considered redundant. Ludwig AI indicates that it's grammatically incorrect, and it is advisable to use the single word "decreased" or other alternatives like "reduced", "fell", or "dropped" for conciseness. While common in scientific and news contexts, these alternatives offer clarity and precision. Therefore, refining your writing to avoid this phrase will improve its overall quality.

FAQs

How can I use "decreased" correctly?

Use "decreased" followed by a preposition such as “to” or “by”. For example: "The price decreased to $20" or "The price decreased by 10%". Using "decreased down" is redundant.

Is it wrong to say "decreased down"?

According to Ludwig AI, the phrase "decreased down" is redundant. It's better to use just "decreased" or find alternative words such as "reduced", "dropped" or "fell".

Which is correct, "decreased" or "decreased down"?

"Decreased" is generally preferred over "decreased down" because the latter is often considered redundant. Both can be grammatically correct depending on context, but "decreased" is more concise.

What's the difference between "decreased" and ""fell""?

"Decreased" implies a gradual reduction, while ""fell"" can suggest a more sudden or rapid decline. Both can effectively replace the redundant phrase "decreased down".

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Most frequent sentences: