3
mainland
3
mainly
3
mains
3
midmost(adjective, central)
3
notable(adjective, great, big, important, wonderful)
3
noteworthy(adjective, important, wonderful, exceptional, marvelous)
3
out-and-out
3
radical(importance, important, significant, original, essential)
3
salt water(expression, idiom, ocean)
3
simple(adjective, top, utter, absolute, first)
3
substantial(adjective, significant, vital, imperative)
3
teacher's pet
3
top(adjective, quality, great, superior, heavy)
3
top of mind(adjective, most important)
3
trunk(noun, adjective, lead, head, master)
3
utmost(adjective, utter, absolute, supreme, dominant)
2
all-absorbing
2
arroyo
2
artery
2
ascendant(adjective, top, superior, powerful, prime)
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APASmart Define. (2016). main thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/main/thesaurus/synonyms
ChicagoSmart Define. 2016. "main thesaurus" https://smartdefine.org/main/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, main thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/main/thesaurus/synonyms>.
MLASmart Define. "main thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/main/thesaurus/synonyms>