insolubleness

in·sol·u·ble

 (ĭn-sŏl′yə-bəl)

adj.

1. That cannot be dissolved: insoluble matter.

2. Difficult or impossible to solve or explain; insolvable: insoluble riddles.

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[Middle English insolible, from Latin īnsolūbilis : in-, not; see in-¹ + solvere, to loosen; see soluble.]

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in·sol′u·bil′i·ty, in·sol′u·ble·ness n.

in·sol′u·ble n.

in·sol′u·bly adv.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.