- Definitions|1
- Thesaurus|110
- Abbreviations|0
| old faithful(expression, adjective, keen, enthusiastic, devoted) | |
| out-and-out(adjective, keen, enthusiastic, devoted) | |
| pure | |
| purposeful(adjective, keen, enthusiastic, devoted, loyal) | |
| sincerity | |
| stalwart(adjective, keen, enthusiastic, devoted) | |
| staunch(adjective, keen, enthusiastic, devoted) | |
| steadfast(adjective, keen, enthusiastic, devoted) | |
| straightforward | |
| sworn(adjective, keen, enthusiastic, devoted, loyal) | |
| true blue(expression, adjective, keen, enthusiastic, devoted) | |
| true to the end(expression, adjective, idiom, keen, enthusiastic) | |
| unaffected | |
| undesigning | |
| untutored | |
| versant | |
| wholehearted(adjective, keen, enthusiastic, devoted, loyal) | |
| zealous(adjective, keen, enthusiastic, devoted, loyal) |
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| APA | Smart Define. (2015). single-hearted thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/single-hearted/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "single-hearted thesaurus" https://smartdefine.org/single-hearted/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, single-hearted thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/single-hearted/thesaurus/synonyms>. |
| MLA | Smart Define. "single-hearted thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/single-hearted/thesaurus/synonyms> |