Synonyms|141Antonyms|73|Broader|1Narrower|0Related|600
1
undatable
1
unfading(lasting, permanent, everlasting, unending, undying)
1
unfailing
1
unflagging
1
unintermitting
1
unlimited
1
unqualified
1
unvarying
1
unwaning
0
assiduous
0
change
0
day-and-night
0
hoar
0
like a wallflower(expression, idiom)
0
loop
0
providence
0
tiresomely long(expression, idiom)
0
unalleviated
0
unrelenting
0
unrelieved
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APASmart Define. (2016). dateless thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/dateless/thesaurus/synonyms
ChicagoSmart Define. 2016. "dateless thesaurus" https://smartdefine.org/dateless/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, dateless thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/dateless/thesaurus/synonyms>.
MLASmart Define. "dateless thesaurus" 26 February 2016. Web. 22 September 2026. <https://smartdefine.org/dateless/thesaurus/synonyms>