1
main culprit(expression, reason, importance, significance)
1
main reason(expression, reason, importance, significance)
1
major asset(expression, reason, importance, significance)
1
major cause(expression, reason, importance, significance)
1
major concern(expression, reason, importance, significance)
1
major premise(expression, reason, importance, significance)
1
major reason(expression, reason, importance, significance)
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)
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APASmart Define. (2013). decisive factor thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/decisive_factor/thesaurus/synonyms
ChicagoSmart Define. 2013. "decisive factor thesaurus" https://smartdefine.org/decisive_factor/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2013, decisive factor thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/decisive_factor/thesaurus/synonyms>.
MLASmart Define. "decisive factor thesaurus" 18 May 2013. Web. 20 September 2026. <https://smartdefine.org/decisive_factor/thesaurus/synonyms>