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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.

A research team led by Professor Hiroaki Kanouchi from Osaka Metropolitan University's Graduate School of Human Life and Ecology investigated whether deficiencies in certain vitamins could be connected to fatigue and motivation levels.

From Science Daily • May 29, 2026

Eroding admissions standards and obscuring academic deficiencies set students up for failure.

From The Wall Street Journal • May 28, 2026

“Re-emergence speaks to a failure to address security deficiencies on land and to tackle piracy’s underlying causes.”

From Barron's • May 4, 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

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