13
least(noun, adjective, head, beginning, prime)
8
first(adjective, order, least)
7
minimum(noun, adjective, amount, least, lowest)
6
minimal
6
smallest(noun, adjective, head, beginning, prime)
5
lowest(adjective, shortest)
4
littlest(adjective, trifling, bottom, negligible, least)
2
minutest
2
niggling
2
nominal
2
slight
2
tiniest
1
aboriginal(adjective, head, beginning, opening, original)
1
ahead(adjective, head, beginning, opening, original)
1
antecedent(adjective, head, beginning, opening, original)
1
anterior(adjective, head, beginning, opening, original)
1
basic(adjective, head, beginning, original, prime)
1
beginning(adjective, head, opening, original, prime)
1
cardinal(adjective, head, beginning, opening, original)
1
delicate
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APASmart Define. (2015). slightest thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/slightest/thesaurus/synonyms
ChicagoSmart Define. 2015. "slightest thesaurus" https://smartdefine.org/slightest/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, slightest thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/slightest/thesaurus/synonyms>.
MLASmart Define. "slightest thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/slightest/thesaurus/synonyms>