What context can I use each word in?
Learn when and how to use these words with these examples!
deficient
Example
The report was deficient in providing a clear analysis of the data. [deficient: adjective]
Example
The athlete was found to be deficient in certain nutrients, affecting their performance. [deficient: adjective]
Example
The company's customer service was deficient in addressing the concerns of its clients. [deficient: adjective]
lacking
Example
The proposal was lacking in detail and failed to address key issues. [lacking: adjective]
Example
The student's essay was lacking in coherence and structure. [lacking: adjective]
Example
The team's performance was lacking in enthusiasm and energy. [lacking: adjective]
Good things to know
Which word is more common?
Lacking is more commonly used than deficient in everyday language. Lacking is versatile and covers a wide range of contexts, while deficient is less common and typically used in technical or formal contexts.
What’s the difference in the tone of formality between deficient and lacking?
Deficient is more formal and technical than lacking, making it suitable for use in academic or professional settings. Lacking is more versatile and can be used in both formal and informal contexts.
