1
slap
1
smack
1
staggeringly
1
surprisedly
1
terribly
1
terrifically
1
terrifiedly
1
terrifyingly
1
tremendously
1
unawares
1
without warning
1
worrisomely
0
affrightedly
0
alarm
0
alarms
0
alert
0
appallingly
0
astonishes
0
astound
0
astoundedly
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APASmart Define. (2015). startlingly thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/startlingly/thesaurus/synonyms
ChicagoSmart Define. 2015. "startlingly thesaurus" https://smartdefine.org/startlingly/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, startlingly thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/startlingly/thesaurus/synonyms>.
MLASmart Define. "startlingly thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/startlingly/thesaurus/synonyms>