1
superlatively
1
suppositionally(adverb, theoretically)
1
surreally
1
theoretically(adverb, theoretically)
1
unbelievably
1
unreally
1
visionarily
1
whimsically
0
ably
0
archly
0
artily
0
astounding
0
awfully
0
bally
0
baroquely
0
beautifully
0
blisteringly
0
bone
0
breathtaking
0
breathtakingly
11 years ago|5.1k views|share |citing 
APASmart Define. (2015). fantastically thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/fantastically/thesaurus/synonyms
ChicagoSmart Define. 2015. "fantastically thesaurus" https://smartdefine.org/fantastically/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, fantastically thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/fantastically/thesaurus/synonyms>.
MLASmart Define. "fantastically thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/fantastically/thesaurus/synonyms>