1
lingering(adjective, fixed, persistent, lasting, remaining)
1
long
1
long-drawn-out
1
long-established
1
long-range
1
long-standing(complete, true, fixed, persistent, hardened)
1
long-term
1
long haul
1
material(adjective, essential, basic, absolute, fundamental)
1
meat and potatoes(expression, adjective, idiom, basic, absolute)
1
name of the game(expression, adjective, idiom, basic, absolute)
1
nitty-gritty(adjective, basic, absolute, fundamental, key)
1
normal
1
nub(adjective, basic, absolute, fundamental, key)
1
obstinate(persistent, continuous, hardened, lasting, continuing)
1
old-line
1
on a rock(expression, idiom)
1
on bedrock
1
original(characteristic, essential, basic, primary, intrinsic)
1
overpowering(great, intense, overwhelming)
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APASmart Define. (2016). deep-seated thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/deep-seated/thesaurus/synonyms
ChicagoSmart Define. 2016. "deep-seated thesaurus" https://smartdefine.org/deep-seated/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, deep-seated thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/deep-seated/thesaurus/synonyms>.
MLASmart Define. "deep-seated thesaurus" 26 February 2016. Web. 25 September 2026. <https://smartdefine.org/deep-seated/thesaurus/synonyms>