Synonyms|155Antonyms|1|Broader|1Narrower|2Related|39

25 entries under authority topic. ×

8
groundwork(noun, support, substance, base)
7
foot(noun, support, substance, base)
7
substructure(noun, support, substance, base)
5
infrastructure(noun, support, substance, base)
4
bed(noun, support, substance, base)
3
footing(noun, support, substance, base)
3
root(noun, support, substance, base)
3
underpinning(noun, support, substance, base)
2
bedrock(noun, support, substance, base)
2
ground(noun, support, substance, base)
2
substratum(noun, support, substance, base)
1
basics(noun, support, substance, basis)
1
support(noun, substance, base, stand)
0
ABCs(noun, support, substance, base)
0
bottom line(noun, expression, support, substance)
0
brass tacks(noun, expression, support, substance)
0
guts(noun, support, substance, basis)
0
heart(noun, support, substance, basis)
0
justification(noun, support, substance, basis)
0
nitty-gritty(noun, support, substance, basis)
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APASmart Define. (2015). understructure thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/understructure/thesaurus/synonyms
ChicagoSmart Define. 2015. "understructure thesaurus" https://smartdefine.org/understructure/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, understructure thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/understructure/thesaurus/synonyms>.
MLASmart Define. "understructure thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/understructure/thesaurus/synonyms>