Synonyms|108Antonyms|13|Broader|5Narrower|0Related|30
1
strut(verb, hold, maintain, stay, bear)
1
subsidize
1
substantiate
1
subvention
1
subventionize
1
temper
1
toughen
1
underbrace
1
underlie
1
underpin
1
underset
1
upkeep
1
validate
1
verify
1
warrant
0
approve of(verb, phrasal verb)
0
assure
0
be behind(expression, idiom)
0
bear witness to(verb, phrasal verb)
0
brook
For more, visit Undergird on Power Thesaurus
11 years ago|1k views|share |citing 
APASmart Define. (2015). undergird thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/undergird/thesaurus/synonyms
ChicagoSmart Define. 2015. "undergird thesaurus" https://smartdefine.org/undergird/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, undergird thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/undergird/thesaurus/synonyms>.
MLASmart Define. "undergird thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/undergird/thesaurus/synonyms>