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.
Use "single-hearted" in a sentence
"Compared to his duplicity, their single-hearted yearning seems almost naive."
"But, launched out, the decision made, the line of least resistance taken, he knew, single-thoughted, single-hearted, only that he was going to Skipper."
"Enough for me the mystery of the eternity of life, and the inkling of the marvelous structure of reality, together with the single-hearted endeavor to comprehend a portion, be it ever so tiny, of the reason that manifests itself in nature."