41 entries under adverb topic. ×

11
by the way(verb, expression, idiom, phrasal verb)
10
incidentally(occasion, aside, irrelation)
6
by the by(verb, phrasal verb, occasion, irrelation)
5
in passing(expression, idiom, aside, casually)
4
apropos
3
extraneously
3
extrinsically
2
speaking of(aside, incidentally)
1
as to(aside, incidentally)
1
by the bye(aside, casually, incidentally, accidentally)
1
casually
1
disjointedly
1
episodically
1
exotically
1
explanatorily
1
externally
1
immaterially
1
impertinently
1
in as much as(aside, incidentally)
1
inadmissibly
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APASmart Define. (2015). parenthetically thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/parenthetically/thesaurus/synonyms
ChicagoSmart Define. 2015. "parenthetically thesaurus" https://smartdefine.org/parenthetically/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, parenthetically thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/parenthetically/thesaurus/synonyms>.
MLASmart Define. "parenthetically thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/parenthetically/thesaurus/synonyms>