23
forever(adverb, everlasting, endlessly, always, ever)
8
permanently(adverb, completely, certainly, definitely, forever)
6
for all time(expression, idiom, forever)
4
finally
4
for keeps(expression, idiom, adverb, always, forever)
3
ever
3
forevermore
3
henceforth
2
enduringly
2
everlastingly(adverb, always, repeatedly, persistently, incessantly)
2
evermore
2
for ever(expression, idiom, adverb)
2
once
2
till doomsday
1
always
1
aye
1
beyond recall
1
beyond shadow of doubt
1
conclusively
1
convincingly
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APASmart Define. (2015). for good thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/for_good/thesaurus/synonyms
ChicagoSmart Define. 2015. "for good thesaurus" https://smartdefine.org/for_good/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, for good thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/for_good/thesaurus/synonyms>.
MLASmart Define. "for good thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/for_good/thesaurus/synonyms>