0
constantly
0
contemporary
0
continually
0
current
0
daily
0
deceitful
0
despairingly
0
directly
0
droopy
0
eternally
0
ever
0
everlastingly
0
executory
0
expansively
0
extant
0
following
0
forever
0
forthcoming
0
forthwith
0
frequently
10 years ago|841 views|share |citing 
APASmart Define. (2016). once thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/once/thesaurus/antonyms
ChicagoSmart Define. 2016. "once thesaurus" https://smartdefine.org/once/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2016, once thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/once/thesaurus/antonyms>.
MLASmart Define. "once thesaurus" 30 March 2016. Web. 24 September 2026. <https://smartdefine.org/once/thesaurus/antonyms>