: very important and necessary
Industry is an integral [=essential] part of modern society.
She had become an integral part of their lives.
—often + toHis character is integral [=essential] to the story.
Luck was integral to our success.
Cite this Entry
“Integral.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/integral. Accessed 17 Apr. 2026.
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