Synonyms|44Antonyms|2|Broader|0Narrower|0Related|2
2
date
2
obsolesce(verb, obsolete)
1
age
1
deteriorate(verb, decline, fall, terminate, degenerate)
1
die(verb, decline, fall, terminate, degenerate)
1
fade
1
fossilize
1
fust
1
grow old
1
lapse(verb, decline, fall, void, tumble)
1
molder
1
perish
1
recede(verb, decline, fall, terminate, degenerate)
1
recidivate(verb, decline, fall, terminate, degenerate)
1
retrograde(verb, decline, fall, terminate, degenerate)
1
revert(verb, decline, fall, terminate, degenerate)
1
rust
1
superannuate
0
antiquate(verb, obsolete)
0
apostatize(verb, decline, fall, terminate, degenerate)
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APASmart Define. (2015). become obsolete thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/become_obsolete/thesaurus/synonyms
ChicagoSmart Define. 2015. "become obsolete thesaurus" https://smartdefine.org/become_obsolete/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, become obsolete thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/become_obsolete/thesaurus/synonyms>.
MLASmart Define. "become obsolete thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/become_obsolete/thesaurus/synonyms>