- present participle of lack.
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
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
Empty
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
Scarce
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
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.
They found that mice lacking CRH receptor 1 produced more OPCs during the early stages of development.
From Science Daily ● Aug. 14, 2026
Should Rodri depart, Maresca's side are somewhat lacking in leaders, with club captain Silva and experienced campaigners John Stones and Nathan Ake also leaving.
From BBC ● Aug. 13, 2026
On TikTok, young people dubbed personality hires are pushing back against the narrative that they are employed despite lacking skills.
From MarketWatch ● Aug. 13, 2026
Timely communication was a concern at times, the report said, with the department lacking a necessary number of radio wave frequencies.
From Los Angeles Times ● Aug. 12, 2026
I was either hard-driving and angry or, with my garden and messages about healthy eating, I was a disappointment to feminists, lacking a certain stridency.
From "Becoming" by Michelle Obama
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.
