SYNCHRONOUS Synonyms: 22 Similar and Opposite Words
https://www.merriam-webster.com/thesaurus/synchronous
WebSynonyms for SYNCHRONOUS: concurrent, synchronic, coincident, simultaneous, coincidental, contemporaneous, contemporary, coeval; Antonyms of SYNCHRONOUS: asynchronous, nonsynchronous, nonsimultaneous, noncontemporary
DA: 77 PA: 36 MOZ Rank: 16