deficiencies

NOUN

imperfection, inadequacy

Synonyms

STRONGEST

dearth defect failing failure fault flaw frailty glitch insufficiency lack scarcity shortage shortcoming weakness

STRONG

absence bug defalcation default deficit demerit dereliction loss need neglect paucity privation scantiness sin want

WEAK

inability to hack it insufficience

Antonyms

STRONGEST

abundance advantage enough excess perfection plenty strength strong point success sufficiency surplus

STRONG

accomplishment achievement

WEAK

adequacy faultlessness satisfaction superfluity

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.

But targeted use of vitamin D, vitamin B12, folate and, in some cases, a multivitamin or protein supplement can help when deficiencies or low intake are present.

From Science Daily • Jun. 6, 2026

The agency rejected Regeneron’s application in October, citing unresolved inspection deficiencies and compliance issues at the Indiana plant.

From Barron's • May 18, 2026

They were so efficient despite their obvious deficiencies, one has to wonder … could this one game blend into several games?

From Los Angeles Times • Apr. 19, 2026

He ticked through each, using derisive language to highlight what he viewed as their past failings and deficiencies.

From BBC • Apr. 10, 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