1
unlogical
1
unscientific
1
unsubstantiated
1
unsupported
1
untenable
1
unwarranted
1
unwise(adjective, obscure, illogical)
1
weak
1
weak-minded
0
harebrained
0
confused
0
contradictory
0
daffy
0
daft
0
dippy
0
disjointed
0
disordered
0
disorderly
0
disorganized
0
fallacious
10 years ago|3.6k views|share |citing 
APASmart Define. (2015). logical thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/logical/thesaurus/antonyms
ChicagoSmart Define. 2015. "logical thesaurus" https://smartdefine.org/logical/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2015, logical thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/logical/thesaurus/antonyms>.
MLASmart Define. "logical thesaurus" 19 October 2015. Web. 23 September 2026. <https://smartdefine.org/logical/thesaurus/antonyms>