7
negligible(adjective, slight, small, unimportant, trivial)
7
slight(adjective, small, limited, unimportant, insufficient)
6
inappreciable(adjective, slight, small, limited, unimportant)
6
microscopical
6
midget
6
minor(adjective, slight, small, unimportant, tiny)
6
puny(adjective, slight, poor, small, quantity)
6
pygmy(adjective, littleness)
6
subatomic(adjective, smallness)
6
teensy-weensy(adjective, tiny)
5
delicate(adjective, small)
5
dwarfish(adjective, small, littleness)
5
meticulous(adjective, careful, thorough, scrupulous, detailed)
5
micro
5
molecular(adjective, smallness)
4
baby(adjective, small)
4
corpuscular(adjective, smallness)
4
elfin(adjective, littleness)
4
evanescent(slight, small, unimportant, commonplace, subtle)
4
fine
11 years ago|10k views|share |citing 
APASmart Define. (2015). microscopic thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/microscopic/thesaurus/synonyms
ChicagoSmart Define. 2015. "microscopic thesaurus" https://smartdefine.org/microscopic/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, microscopic thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/microscopic/thesaurus/synonyms>.
MLASmart Define. "microscopic thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/microscopic/thesaurus/synonyms>