1
either
1
elementary(adjective, pure)
1
entire(adjective, united)
1
entry-level(adjective, last, minute, minimum, slightest)
1
essential(adjective, pure)
1
exclusive
1
faultless(adjective, pure)
1
formative(adjective, pure)
1
foundational(adjective, pure)
1
fragile(adjective, poor, small, insignificant, unimportant)
1
fragmentary(adjective, tiny)
1
germinal
1
grim(adjective, poor, small, insignificant, unimportant)
1
guiltless(adjective, pure)
1
heteroatomic
1
heterocyclic
1
hexatomic
1
homocyclic
1
honorable(adjective, pure)
1
immaculate(adjective, pure)
10 years ago|8.3k views|share |citing 
APASmart Define. (2016). atomic thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/atomic/thesaurus/synonyms
ChicagoSmart Define. 2016. "atomic thesaurus" https://smartdefine.org/atomic/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, atomic thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/atomic/thesaurus/synonyms>.
MLASmart Define. "atomic thesaurus" 29 March 2016. Web. 21 September 2026. <https://smartdefine.org/atomic/thesaurus/synonyms>