Synonyms|665Antonyms|174|Broader|10Narrower|15Related|812

60 entries under fundamental topic. ×

1
exigency(noun, want, need, essential, certainty)
1
leading(adjective, important, serious, capital, essential)
1
meaningful(adjective, big, important, significant, substantial)
1
meat-and-potatoes(adjective, important, significant, original, essential)
1
name(important, essential, critical, basic)
1
name-of-the-game(important, essential, critical, basic)
1
nitty-gritty(adjective, important, original, essential, critical)
1
obligation(noun, want, need, essential, certainty)
1
radical(adjective, important, significant, original, essential)
1
substratal(adjective, important, significant, original, essential)
1
underlined(important, essential, critical, basic)
1
urgency(noun, want, need, essential, certainty)
0
concealed(adjective, original, basic, hidden)
0
hidden(adjective, original, basic, primary)
0
latent(adjective, original, basic, hidden)
0
lurking(adjective, original, basic, hidden)
0
nub(adjective, original, basic, primary)
0
root(adjective, original, basic, hidden)
0
rooter(basic, latent)
0
veiled(adjective, original, basic, hidden)
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HarvardSmart Define 2015, necessary thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/necessary/thesaurus/synonyms>.
MLASmart Define. "necessary thesaurus" 2 November 2015. Web. 28 September 2026. <https://smartdefine.org/necessary/thesaurus/synonyms>