5
inanely(adverb, thoughtlessly)
3
brainlessly(adverb, thoughtlessly)
3
foolishly
2
asininely
2
dully
2
dumbly
2
goofily
2
idiotically
2
mindlessly(adverb, thoughtlessly)
2
stupidly
2
vacuously(adverb, thoughtlessly)
1
blankly(adverb, thoughtlessly)
1
daftly
1
densely
1
fellowly
1
idioticly
1
imbecilely
1
insensately
1
jerkily
1
moronically
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APASmart Define. (2015). fatuously thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/fatuously/thesaurus/synonyms
ChicagoSmart Define. 2015. "fatuously thesaurus" https://smartdefine.org/fatuously/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, fatuously thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/fatuously/thesaurus/synonyms>.
MLASmart Define. "fatuously thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/fatuously/thesaurus/synonyms>