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Mainspring has 26 synonyms. The top synonyms for mainspring are wellspring, wellhead, vocation, ulterior motive, springhead, sake, riverhead, reason and 18 more. Another word for mainspring is wellspring. Browse the full list below.
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| Random | DefinitionA common synonym for mainspring is wellspring. Other synonyms include wellhead, vocation, ulterior motive, springhead.
Mainspring has 26 synonyms listed on Thesaurasize.
(n): the principal spring of a clockwork mechanism, that drives it by uncoiling; the most important reason for something Example: "editing Wiktionary is the mainspring of my life."
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