Thesaurus.com
Dictionary.com
Definitions

deficiency

[dih-fish-uhn-see] / dɪˈfɪʃ ən si /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The founders wrote the Constitution in part to fix that deficiency.

From The Wall Street Journal ● Oct. 2, 2026

Saul and Drew have both since recovered but take daily antibiotics after tests revealed they both had properdin deficiency - a rare immunodeficiency which means they are more susceptible to infections such as meningitis.

From BBC ● Sep. 29, 2026

“Conditions such as depression, lack of sleep, a low-functioning thyroid, and vitamin B12 deficiency can lead to memory loss that mimic the early stages of dementia,” Tan writes.

From Los Angeles Times ● Sep. 23, 2026

Vitamin D deficiency is also frequently reported among people with breast cancer, prompting researchers to investigate whether low levels might affect pain following surgery.

From Science Daily ● Sep. 14, 2026

Driver ants, Ebola virus, acquired immune deficiency syndrome: all these are brooms devised by nature to sweep a small clearing very well.

From "The Poisonwood Bible" by Barbara Kingsolver

“Further, while our report outlines deficiencies in the management of the renovation project . . . we did not identify administrative misconduct during our evaluation.”

From The Wall Street Journal ● Sep. 30, 2026

But, in July 2025, a panel of senior High Court judges ruled that the investigations carried out by MI5 suffered from "serious procedural deficiencies" and that "we cannot rely on their conclusions".

From BBC ● Sep. 18, 2026

So, arbitrarily boosting testosterone is not good for young men without deficiencies.

From Slate ● Sep. 13, 2026

"The fundamental root cause... resulting in a catastrophe, was the deficiencies and failures on the bridge of the M/T ALSU," it said.

From Barron's ● Sep. 3, 2026

Santa made a sign for Mrs. Reilly not to discuss her deficiencies, but Mrs. Reilly was not to be silenced.

From "A Confederacy of Dunces" by John Kennedy Toole




Vocabulary lists containing deficiency


Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training