3
off the record(expression, idiom)
2
informally
2
privately
1
illegally
1
illicitly
1
inofficially
1
naturally
1
offhand
1
officiously
1
on the side(expression, idiom, adverb)
1
plainly
1
record
1
simply
1
unconstitutionally
1
unofficial
0
colloquially
0
confidentially
0
covertly
0
erratically
0
externally
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APASmart Define. (2015). unofficially thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/unofficially/thesaurus/synonyms
ChicagoSmart Define. 2015. "unofficially thesaurus" https://smartdefine.org/unofficially/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, unofficially thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/unofficially/thesaurus/synonyms>.
MLASmart Define. "unofficially thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/unofficially/thesaurus/synonyms>