16
concomitant(adjective, present, current, modern, similar)
11
attendant(adjective, present, casual, contemporary, related)
10
concurrent(adjective, contemporary, secondary, indirect, ancillary)
8
incidental(adjective, minor, related)
8
attending(verb, adjective, subordinate, contemporary, attendant)
8
co-morbid
7
coincident(adjective, contemporary, secondary, indirect, ancillary)
6
accessory(adjective, subordinate, contemporary, secondary, indirect)
6
concurring(verb, adjective, coinciding)
6
escorting
6
synchronous(adjective, simultaneous)
5
contemporaneous(adjective, simultaneous)
5
contemporary(adjective, existing)
5
participative
5
twin(adjective, like, duplicate, similar, identical)
4
accompany
4
agreeing(verb, adjective, contemporary, attendant, immediate)
4
coeval(adjective, simultaneous)
4
coexistent
4
collateral(adjective, subordinate, contemporary, secondary, connected)
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APASmart Define. (2016). accompanying thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/accompanying/thesaurus/synonyms
ChicagoSmart Define. 2016. "accompanying thesaurus" https://smartdefine.org/accompanying/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, accompanying thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/accompanying/thesaurus/synonyms>.
MLASmart Define. "accompanying thesaurus" 10 March 2016. Web. 20 September 2026. <https://smartdefine.org/accompanying/thesaurus/synonyms>