63 entries under prime topic. ×

1
highest(adjective, original, serious, essential, basic)
1
in the beginning(expression, adjective, idiom, head, beginning)
1
lead off(expression, adjective, head, beginning)
1
least(adjective, head, beginning, original)
1
number one(expression, adjective, head, beginning, essential)
1
numero uno(expression, adjective, head, beginning)
1
opening(adjective, head, beginning, original, basic)
1
outstanding(adjective, important, significant, essential, basic)
1
pioneer(adjective, head, beginning, opening, original)
1
predominant(adjective, important, significant, usual, essential)
1
preeminent(adjective, opening, original, serious, essential)
1
premier(adjective, head, beginning, opening, original)
1
right up front(expression, adjective, idiom, head, beginning)
1
slightest(adjective, head, beginning, original)
1
smallest(adjective, head, beginning, trifling)
1
supreme(adjective, opening, original, essential)
0
controlling(adjective, essential, core, key)
0
greatest(adjective, opening, original, serious, essential)
0
incomparable(adjective, essential, key, main)
0
maximum(adjective, essential, key, main)
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APASmart Define. (2016). fundamental thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/fundamental/thesaurus/synonyms
ChicagoSmart Define. 2016. "fundamental thesaurus" https://smartdefine.org/fundamental/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, fundamental thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/fundamental/thesaurus/synonyms>.
MLASmart Define. "fundamental thesaurus" 29 March 2016. Web. 28 September 2026. <https://smartdefine.org/fundamental/thesaurus/synonyms>