16 entries under idiom topic. ×

11
in essence(expression, adverb, surface, inside)
10
at bottom(adverb, surface)
7
at heart(adverb, surface, reality, basically)
4
au fond(expression, adverb)
4
in the main(expression, adverb, greatness)
2
at the core
1
as good as(expression, adjective, adverb, nearly)
1
as much as(expression, adjective, nearly, approximately)
1
beyond all bounds
1
for all intents and purposes(expression, adjective, nearly, approximately)
1
in the extreme
1
in theory
1
on principle
1
with a vengeance
0
in all conscience(expression, greatness)
0
in principle
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APASmart Define. (2015). fundamentally thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/fundamentally/thesaurus/synonyms
ChicagoSmart Define. 2015. "fundamentally thesaurus" https://smartdefine.org/fundamentally/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, fundamentally thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/fundamentally/thesaurus/synonyms>.
MLASmart Define. "fundamentally thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/fundamentally/thesaurus/synonyms>