Synonyms|85Antonyms|0|Broader|0Narrower|0Related|0
1
major term(expression, reason, importance, significance)
1
master factor(expression, reason, importance, significance)
1
opinion maker(expression, reason, importance, significance)
1
original cause(expression, reason, importance, significance)
1
original reason(expression, reason, importance, significance)
1
overriding reason(expression, reason, importance, significance)
1
overriding term(expression, reason, importance, significance)
1
pacing factor(expression, reason, importance, significance)
1
pacing item(expression, reason, importance, significance)
1
primal cause(expression, reason, importance, significance)
1
primary cause(expression, reason, importance, significance)
1
primary reason(expression, reason, importance, significance)
1
prime cause(expression, reason, importance, significance)
1
prime mover(expression, reason, importance, significance)
1
principal cause(expression, reason, importance, significance)
1
radical turn(expression, reason, importance, significance)
1
reason fundamental(expression, reason, importance, significance)
1
root cause(expression, reason, importance, significance)
1
root motive(expression, reason, importance, significance)
1
root source(expression, reason, importance, significance)
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ChicagoSmart Define. -0001. "key idea thesaurus" https://smartdefine.org/key_idea/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define -0001, key idea thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/key_idea/thesaurus/synonyms>.
MLASmart Define. "key idea thesaurus" 30 November -0001. Web. 22 September 2026. <https://smartdefine.org/key_idea/thesaurus/synonyms>