DIAGNOSTICAL Synonyms: 72 Similar and Opposite Words

diagnostic 1 of 2

adjective

ˌdī-ig-ˈnä-stik

variants also diagnostical

Definition of diagnostic

as in characteristic

serving to identify as belonging to an individual or group studies that show that cultural diversity is a diagnostic feature of a thriving city

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

diagnostic

2 of 2

noun

as in feature

something that sets apart an individual from others of the same kind the thesis that moral decline is the infallible diagnostic of a decadent society

Synonyms & Similar Words

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of diagnostic

Adjective

Under the order filed in Illinois, Deere will now be required to make diagnostic and repair tools available to equipment owners and independent repair shops, not only its own network of authorized dealers. — ABC News, 8 July 2026 More effective is preimplantation genetic testing for aneuploidy (PGT-A), a diagnostic screening that checks embryos for chromosomal abnormalities. — Edna Bonhomme, Scientific American, 6 July 2026

Noun

New on the high-tech medi-spa scene, this beacon of calm offers state-of-the-art diagnostics and therapies with a team of specialist doctors, therapists, sports scientists, and osteopaths at the ready. — Condé Nast, Condé Nast Traveler, 8 July 2026 In November, a British woman with the social media username AmieinChina posted on TikTok about her decision to travel to Beijing for diagnostics tests. — Stephanie Yang, CNN Money, 8 July 2026 See All Example Sentences for diagnostic

Recent Examples of Synonyms for diagnostic

Adjective

Mackenzie writes with the characteristic judgmental sniff of an upper-crust tourist.

— Amelia Soth, JSTOR Daily, 15 July 2026
This could likely be the last World Cup for the 39-year-old superstar Lionel Messi, who is contributing as effectively as ever, with his characteristic walk up and down the field as teammates and defenders around him jog to and fro.

— Becky Sullivan, NPR, 14 July 2026

Definition of characteristic

Noun

The Times, citing anonymous sources, reported the switch had come at the urging of the Secret Service, and that the newer plane lacked some of the advanced security features of the older aircraft, including antimissile capabilities.

— ABC News, ABC News, 14 July 2026
Squarespace, on the other hand, is a fantastic option, thanks to its beautiful designs, intuitive editor, and powerful e-commerce features.

— Jordan Minor, PC Magazine, 14 July 2026

Definition of feature

Adjective

The wine itself is distinctive due to its high percentage of Cabernet Franc (up to 55 percent), and also known for its long aging potential (15 to 50 years, and more for great vintages).

— Lewis Chester, Robb Report, 11 July 2026
After a fire—rumored to have been set by a disgruntled former suitor of one of the Gangotena daughters—badly damaged the mansion, Italian architects rebuilt it in the early 20th century, giving it its distinctive Neoclassical character.

— Condé Nast, Condé Nast Traveler, 10 July 2026

Definition of distinctive

Noun

Argentina will be a significant step up in difficulty but England have enough attacking quality to trouble the reigning champions.

— Abdul Rehman, New York Times, 14 July 2026
Participants report reductions in anxiety and depression symptoms, along with improvements in sleep quality and overall quality of life.

— Nicole Williams, AJC.com, 14 July 2026

Definition of quality

Adjective

Instead of painting a broad picture that included all leading forms of content distribution — movie theaters, broadcast and cable television as well as streaming platforms — the states zeroed in on three distinct slices.

— Meg James, Los Angeles Times, 15 July 2026
Data, on the other hand, shows a distinct generational divide.

— Catherina Gioino, Fortune, 15 July 2026

Definition of distinct

Noun

Still, the pieces of ceiling trim dedicated to the pillars of courage and trust remained missing, a nod perhaps to the traits most easily lost when disaster strikes – and most needed to rebuild.

— Alisha Ebrahimji, CNN Money, 6 July 2026
The American Culture Quiz is a weekly test of our unique national traits, trends, history and people — including current events and the sights and sounds of the United States.

— Kelly McGreal, FOXNews.com, 5 July 2026

Definition of trait

Adjective

Before the war, a typical day would see around 100 commercial vessels pass through.

— Billy Stockwell, CNN Money, 15 July 2026
In a break with soccer protocol, the 11-minute set is reportedly due to extend the typical 15 minute half-time break, with a new half-time of up to 30 minutes.

— Andreas Wiseman, Deadline, 14 July 2026

Definition of typical

Noun

There are loft-like attributes to them, and also the feeling of living in a penthouse.

— Deborah Gimelson, Architectural Digest, 3 July 2026
Some rabbinic readings attribute Lot’s hesitation to leave Sodom to his immoral greed and inordinate wealth.

— Encyclopedia Britannica, Encyclopedia Britannica, 2 July 2026

Definition of attribute

Browse Nearby Words

diagnosis

diagnostic

diagnostics

See all Nearby Words

Cite this Entry

Style

“Diagnostic.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/diagnostic. Accessed 16 Jul. 2026.

Copy Citation

Synonyms of diagnostic

adjective

noun

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster on diagnostic

More from Merriam-Webster

Word of the Day

bibelot

Popular in Grammar & Usage

Merriam-Webster’s Great Big List of Words You Love to Hate

Is that lie 'bald-faced' or 'bold-faced'?

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

Why is '-ed' sometimes pronounced at the end of a word?

Commonly Misspelled Words

Popular in Wordplay

14 Phobias You Probably Haven't Heard Of

It's a Scorcher! Words for the Summer Heat

The Longest Long Words List

Ten Words Ending with a Silent ‘T’

12 Lovely and Unusual Words for the Natural World

Popular

Merriam-Webster’s Great Big List of Words You Love to Hate

14 Phobias You Probably Haven't Heard Of

It's a Scorcher! Words for the Summer Heat

Games & Quizzes