Top synonyms for beginning (other words for beginning) are start, commencement and outset. Antonyms for beginning. 16 synonyms and near synonyms of starting from the Merriam-Webster Thesaurus, plus 22 antonyms and near antonyms. Find more ways to say beginning, along with related words, antonyms and example phrases at Thesaurus.com, the world's most trusted free thesaurus. Another word for beginning. Another word for beginning: start, opening, break, chance, source | Collins English Thesaurus Beginning synonyms. 78 synonyms of beginning from the Merriam-Webster Thesaurus, plus 131 related words, definitions, and antonyms. Find more ways to say starting, along with related words, antonyms and example phrases at Thesaurus.com, the world's most trusted free thesaurus. Find another word for starting. Another word for starting. Find another word for beginning. Synonyms for beginning in Free Thesaurus. Starting: as in beginning, first.