1
needlessly
1
no purpose(verb, expression, idiom)
1
pretentiously
1
purposelessly
1
ridiculously
1
self-admiringly
1
self-applaudingly
1
self-flatteringly
1
self-importantly
1
sterilely
1
superficially
1
thoughtlessly
1
trivially
1
turgidly
1
unfoundedly
1
unproductively
1
unprofitably
1
vaingloriously
1
voidly
1
windily
11 years ago|5.3k views|share |citing 
APASmart Define. (2015). vainly thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/vainly/thesaurus/synonyms
ChicagoSmart Define. 2015. "vainly thesaurus" https://smartdefine.org/vainly/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, vainly thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/vainly/thesaurus/synonyms>.
MLASmart Define. "vainly thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/vainly/thesaurus/synonyms>