Synonyms|243Antonyms|38|Broader|1Narrower|0Related|60
1
continuing(permanent, long-term, lifelong)
1
critical(great, extraordinary, outstanding, notable, unforgettable)
1
crucial(great, extraordinary, outstanding, notable, unforgettable)
1
deathless
1
decisive(great, extraordinary, outstanding, notable, unforgettable)
1
deep-felt
1
deep-rooted(adjective, fixed, permanent, long-term, lifelong)
1
deepgoing
1
double-dyed
1
durable(adjective, firm, true, fixed, constant)
1
ecstatic
1
electric
1
endless(adjective, permanent, long-term, lifelong)
1
eternal(adjective, permanent, long-term, lifelong)
1
eventful(great, extraordinary, outstanding, notable, unforgettable)
1
everlasting(adjective, permanent, long-term, lifelong)
1
extraordinary(great, outstanding, notable, unforgettable)
1
fadeless
1
green
1
haunting
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APASmart Define. (2016). indelible thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/indelible/thesaurus/synonyms
ChicagoSmart Define. 2016. "indelible thesaurus" https://smartdefine.org/indelible/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, indelible thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/indelible/thesaurus/synonyms>.
MLASmart Define. "indelible thesaurus" 29 March 2016. Web. 26 September 2026. <https://smartdefine.org/indelible/thesaurus/synonyms>