4
coincidental
4
combined(adjective, concurrent)
4
compatible
4
synergistic(adjective, concurrent)
4
united(adjective, concurrent)
3
concurring
3
parallel
2
according
2
agreeing
2
associated
2
concordant
2
coordinate
2
descriptive
2
in tempo
2
in time
2
isochronous
2
joint
2
synchronistical
2
synergetic
1
accessory
10 years ago|3.7k views|share |citing 
APASmart Define. (2016). synchronous thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/synchronous/thesaurus/synonyms
ChicagoSmart Define. 2016. "synchronous thesaurus" https://smartdefine.org/synchronous/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, synchronous thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/synchronous/thesaurus/synonyms>.
MLASmart Define. "synchronous thesaurus" 10 March 2016. Web. 22 September 2026. <https://smartdefine.org/synchronous/thesaurus/synonyms>