lowhearted

Adjective

low-hearted (comparative more low-hearted, superlative most low-hearted)

1. Depressed, despondent, or dispirited
   • Weary, slack-jointed, low-hearted as they were, the deadly Coast-fever fell upon them, and they shivered, and burned,and groaned,and raved, and leaped into holes, or rolled into campfires.1886 April – 1887 April, Richard Doddridge Blackmore, “The Trials of Faith”, in Springhaven. A Tale of the Great War. […], volume II, London: Sampson Low, Marston, Searle & Rivington, […], published...
2. Morally reprehensible, cowardly, or untrustworthy.
   • A base, low-hearted wretch, as you justly call him, with all his pride of ancestry; and more an enemy to himself with regard to his present and future happiness, than to you, in the barbarous and ungrateful wrongs he has done you; […]1748, [Samuel Richardson], Clarissa. Or, The History of a Young Lady: […], volume (please specify |volume=I to VII), London: […] S[amuel] Richardson; [a]nd sold by John Osborn, […], →OCLC
3. (obsolete) Modest and unassuming.
   • His poor countrymen, seeing his boldness, began to fetch deep sighs and groan like so many chained lions, speaking so loud that the khan as well as the four low-hearted chiefs, could hear them.1792, Emin Joseph Emin, Amy Apcar, Life and Adventures of Emin Joseph Emin, 1726-1809