lacking
Americanpreposition
adjective
Etymology
Origin of lacking
Explanation
If something's lacking, there's not enough of it. Your new house may be lacking when it comes to comfortable chairs, leading your friends to lounge on the floor instead. If there's a shortage of something, it's lacking. You might also describe something that's deficient — or not quite good enough — as lacking. If a substitute teacher is lacking in skill when it comes to controlling a rowdy class, he'll be exhausted by the end of his first day on the job. Finally, you can use this word in the sense of "absent": If your older brother's appetite is lacking, he might be coming down with something — usually he can eat an entire pizza on his own.
Vocabulary lists containing lacking
Absent
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Empty
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Scarce
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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.
Later, it would settle a class-action lawsuit for false advertising and announce the retirement of its head of AI, who was criticized for lacking a vision for Siri.
From The Wall Street Journal • Jun. 8, 2026
It has said a ceasefire is necessary in order for its forces to disarm Hezbollah themselves, but Israel has previously accused the government in Beirut of lacking the ability to do so.
From BBC • Jun. 6, 2026
To verify the findings, the team partnered with scientists in Zurich who had developed mice lacking the PAM gene.
From Science Daily • Jun. 5, 2026
It’s ridiculous that this is even a fear one would have to have in Hollywood, which is already egregiously lacking in Latina main characters.
From Los Angeles Times • Jun. 4, 2026
Most rabbits in his situation, lacking almost all experience of wild life, would have fallen victim at once to the elil: but not Woundwort.
From "Watership Down: A Novel" by Richard Adams
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.