Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

EXAMPLES FROM THE WEB FOR UN-EASIEST

The king declared the year in which that nobleman directed his councils was the un-easiest of his whole life.

WORD ORIGIN

late 13c., "not comforting," from un- (1) "not" + easy. Meaning "disturbed in mind" is attested from 1670s.