UNSUBSTANTIALITY Synonyms: 19 Similar and Opposite Words

unsubstantiality

noun

Definition of unsubstantiality

as in unsoundness

Related Words

Relevance

Dissimilar Words

Example Sentences

Recent Examples of Synonyms for unsubstantiality

Noun

Based on Alaïa Jade’s public reputation and the structural unsoundness of the bell tower, Smullen thinks an accidental death is likely.

— Sophie Brookover, Vulture, 21 Nov. 2025
In looking back at the history of Emtech, the colt who suffered a catastrophic breakdown in Saturday’s eighth race, it was discovered that he was once placed on the Veterinarian’s List because of unsoundness.

— John Cherwa, Los Angeles Times, 30 Sep. 2019

Definition of unsoundness

Noun

The 1990s were a period of instability across the country, including in Goma, which saw periods of widespread looting that started with mutinous security forces and during which soldiers terrorized the population.

— Chinatsu Tsuji, Encyclopedia Britannica, 14 July 2026
Due to the high structural instability risks, the County has established a 150-foot safety perimeter around the building—a distance equal to one and a half times the building's height—based on guidance from structural safety officials.

— Mike Hellgren, CBS News, 12 July 2026

Definition of instability

Noun

As cyber insecurity rises and trust declines, protecting brand perception becomes a critical, measurable part of managing operational risk.

— Jon Michail, Forbes.com, 8 July 2026
Bell also spoke of the importance of prioritizing communication in their relationship — especially during moments of fear or insecurity.

— Toria Sheffield, PEOPLE, 5 July 2026

Definition of insecurity

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.

Browse Nearby Words

unsubstantial

unsubstantiality

unsubstantiated

See all Nearby Words

Cite this Entry

Style

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

Copy Citation

Synonyms of unsubstantiality

noun

Example Sentences

Browse Nearby Words

Cite this Entry

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