20 entries under adjective topic. ×

2
vital
1
basic
1
basal
1
canonic
1
canonical
1
central
1
alkaline
1
imperative
1
indispensable
1
initial
1
introductory
1
key
1
necessary
1
plain
1
prefatory
1
simple
1
standard
-1
primary
-1
primitive
-1
primordial
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APASmart Define. (2016). incident thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/incident/thesaurus/antonyms
ChicagoSmart Define. 2016. "incident thesaurus" https://smartdefine.org/incident/thesaurus/antonyms (accessed September 26, 2026).
HarvardSmart Define 2016, incident thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/incident/thesaurus/antonyms>.
MLASmart Define. "incident thesaurus" 1 April 2016. Web. 26 September 2026. <https://smartdefine.org/incident/thesaurus/antonyms>