Share WhatsApp Facebook Twitter Pinterest Email Undertaking Definition: The definition of an undertaking is a task or an agreement to do something. Synonyms: Contract, Endeavor, Trade, Enterprise, Promise Antonyms: Irresponsibility, Refusal, Truancy, Escapade, Avoidance 0 Related Posts Abandon – Definition, Synonyms and Antonym December 26, 2021 Abash – Definition, Synonyms and Antonym December 26, 2021 Abbreviate – Definition, Synonyms and Antonym December 26, 2021 Write A Comment Cancel Reply Save my name, email, and website in this browser for the next time I comment. Δ