14 entries under incidental topic. ×

6
episodic(adjective, interposition, irrelation)
6
extraneous(adjective, extraneous)
6
extrinsic(adjective, extraneous)
5
incidental(adjective, irrelation)
3
subordinate
3
bracketed
2
intermediate
2
related
2
by the way(expression, adjective, idiom)
2
in parenthesis(expression, adjective, idiom)
1
explanatory
1
inserted
1
interposed
1
qualifying
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APASmart Define. (2015). parenthetical thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/parenthetical/thesaurus/synonyms
ChicagoSmart Define. 2015. "parenthetical thesaurus" https://smartdefine.org/parenthetical/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, parenthetical thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/parenthetical/thesaurus/synonyms>.
MLASmart Define. "parenthetical thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/parenthetical/thesaurus/synonyms>