107 entries under base topic. ×

4
principle(noun, support, action, beginning)
4
reinforcement(noun, support, hold, block, back)
3
basement(noun, support, rest, balance)
3
foot(noun, support, substance, authority, rest)
3
fundamental(noun, support, action, cause, start)
3
seat(noun, support, cause, start, reason)
3
shore(noun, support, hold, block, back)
3
understructure(noun, support, substance, authority)
2
bedding(noun, hold, block, back)
2
cornerstone(noun, hold, block, back)
2
pillar(noun, support, hold, block, back)
2
reason(noun, support, action, cause, start)
2
rudiment(noun, support, action, beginning)
2
seating(noun, support, rest, balance)
1
abutment(noun, support, hold, block, back)
1
action(noun, support, beginning, source)
1
agency(noun, hold, block, back)
1
antecedent(noun, support, action, cause, reason)
1
assumption(noun, support, action, beginning)
1
authority(noun, support, action, substance)
11 years ago|3k views|share |citing 
APASmart Define. (2015). underpinning thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/underpinning/thesaurus/synonyms
ChicagoSmart Define. 2015. "underpinning thesaurus" https://smartdefine.org/underpinning/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, underpinning thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/underpinning/thesaurus/synonyms>.
MLASmart Define. "underpinning thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/underpinning/thesaurus/synonyms>