that is obligatory

USAGE SUMMARY

The phrase "that is obligatory" is correct and usable in written English.
It can be used to indicate that something is required or mandatory in a specific context. Example: "In this course, attending all lectures is that is obligatory for passing the final exam."

✓ Grammatically correct

Science

News & Media

Human-verified examples from authoritative sources

Exact Expressions

8 human-written examples

Three of them are used for something that is obligatory.

BBC

It is not so much the action that is obligatory as the agent that has the obligation to do it, or to act in that way.

SEP

If you consider it for a moment, that spontaneous desire to rise to one's feet for an ovation is much more genuine and worthwhile than anything that is obligatory and polite.

Huffington Post

We next determined the phosphorylation at Tyr701 of STAT1 that is obligatory for STAT1 activation.

Plosone

Besides the motor symptoms progressive autonomic failure is an important feature of MSA that is obligatory for the diagnosis (Gilman et al., 2008; Jecmenica-Lukic et al., 2012).

Experimental Neurology

But how does this help us understand what it is that is obligatory — the owner of the obligatoriness, as it were?

SEP

Human-verified similar examples from authoritative sources

Similar Expressions

52 human-written examples

Specifically, we propose that tetramers are consumed within milliseconds to yield octamers that are obligatory intermediates toward ULF formation.

Biophysical Journal

These studies have identified two anionic amino acids, D126 and E172, that are obligatory for ligand binding.

Biochimica et Biophysica Acta (BBA) - Molecular Cell Research

As a disseminator of the news, the paper shall observe the decencies that are obligatory upon a private gentleman.

The Washington Post

In fact, 'tis the season to talk about other things: there are some autumn conversations that are obligatory.

The Guardian - Opinion

But Mr. Page has showed newfound warmth on earnings conference calls that are obligatory for chief executives.

The New York Times - Tech

Expert writing Tips

Best practice

When using "that is obligatory", ensure the context clearly defines who or what is bound by the obligation. This avoids ambiguity and strengthens the statement's impact.

Common error

Avoid using "that is obligatory" in casual conversation. Opt for simpler alternatives like "that's required" or "that's a must" to maintain a natural tone.

Linguistic Context

The phrase "that is obligatory" functions as a predicate adjective phrase. It describes a noun or pronoun, indicating a state of being required or mandatory. Ludwig provides examples of its use in scientific, news, and general contexts.

Expression frequency: Uncommon

Frequent in

Science

50%

News & Media

33%

Formal & Business

17%

Less common in

Encyclopedias

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "that is obligatory" is a grammatically correct predicate adjective phrase that indicates something is required or mandatory. Ludwig AI indicates that this phrase is most commonly found in scientific and news contexts, leaning towards formal and professional settings. While semantically similar to phrases like "that is required" or "that is mandatory", it carries a more formal tone, making it less suitable for casual conversations. When using this phrase, ensure the context clearly defines who or what is bound by the obligation to avoid any ambiguity.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

that is required

Replaces "obligatory" with a more common synonym, focusing on necessity.

that is mandatory

Emphasizes the compulsory nature of the obligation.

that is compulsory

Similar to "mandatory", highlighting the enforced nature of the requirement.

that is a must

Uses a more informal expression to indicate necessity.

that is essential

Focuses on the importance and necessity of something.

that is indispensable

Highlights that something cannot be done without.

that is requisite

Indicates that something is necessary or needed for a specific purpose.

that is unavoidable

Suggests that something cannot be prevented or escaped.

that is binding

Implies a legal or moral obligation that must be followed.

that is prescribed

Indicates that something is officially recommended or required.

FAQs

How can I use "that is obligatory" in a sentence?

Use "that is obligatory" to state something is required or mandatory, such as, "In this course, attending all lectures is "that is obligatory" for passing the final exam".

What phrases are similar to "that is obligatory"?

Similar phrases include "that is required", "that is mandatory", or "that is essential". The best choice depends on the specific nuance you want to convey.

Is "that is obligatory" more formal than "that's necessary"?

Yes, "that is obligatory" carries a more formal tone than "that's necessary". Use it in situations where you want to emphasize a strict requirement or duty.

When is it appropriate to use "that is obligatory"?

It's appropriate in legal, academic, or formal contexts where you need to clearly state an obligation or requirement. Avoid using it in casual conversation where it may sound overly stiff.