122 entries under principal topic. ×

6
particular(adjective, superior, unusual, exceptional, distinct)
6
preponderant(adjective, top, superior, powerful, usual)
6
sovereign(adjective, outstanding, head, prominent, prime)
5
elementary(adjective, top, original, essential, basic)
5
greatest(adjective, quality, top, superior, important)
5
predominating(adjective, usual, universal, general)
5
ruling(adjective, important, head, significant, usual)
5
significant(adjective, good, superior, unusual, important)
5
stellar(adjective, quality, top, superior, important)
4
dominating(adjective, top, superior, important, prominent)
4
highest(adjective, quality, top, superior, important)
4
special(adjective, bad, great, excellent, superior)
3
basal(adjective, lead, head, master, essential)
3
best(adjective, quality, lead, superior, unusual)
3
headmost(adjective, top, superior, important, original)
3
lead
3
radical(importance, important, significant, original, essential)
3
top(adjective, quality, great, superior, heavy)
2
ascendant(adjective, top, superior, powerful, prime)
2
champion(adjective, top, superior, important, outstanding)
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APASmart Define. (2016). main thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/main/thesaurus/synonyms
ChicagoSmart Define. 2016. "main thesaurus" https://smartdefine.org/main/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, main thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/main/thesaurus/synonyms>.
MLASmart Define. "main thesaurus" 29 March 2016. Web. 27 September 2026. <https://smartdefine.org/main/thesaurus/synonyms>