5
hastily
3
inadvertently
3
involuntarily
2
carelessly
2
extemporaneously
2
heedlessly
2
impetuously
2
impromptuly
2
impulsively
2
random
2
spur
2
suddenly
2
unintendedly
2
unintentionally
2
unthinkingly
1
abruptly
1
accidentally
1
agilely
1
apace
1
brashly
11 years ago|927 views|share |citing 
APASmart Define. (2015). unpremeditatedly thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/unpremeditatedly/thesaurus/synonyms
ChicagoSmart Define. 2015. "unpremeditatedly thesaurus" https://smartdefine.org/unpremeditatedly/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, unpremeditatedly thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/unpremeditatedly/thesaurus/synonyms>.
MLASmart Define. "unpremeditatedly thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/unpremeditatedly/thesaurus/synonyms>