Definition of "nontrivial" []

• Not trivial; of some importance. (adjective)
• Mathematics Of, relating to, or being an expression in which at least one variable is not equal to zero. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "While it's what engineers call a nontrivial problem, making a car drive itself is ultimately just a matter of engineering, and will sooner or later become a reality."
• "Narayana Kocherlakota noted recently that the Fed would need to sell a "nontrivial" amount of its holdings, such as $15 billion to $25 billion a month, to return its balance sheet to precrisis levels."
• ""nontrivial" in the sense that it wasn't easy to accomplish."