Synonyms|796Antonyms|149|Broader|10Narrower|0Related|951
1
massive
1
physical
1
powerful
1
serviceable
1
solid
1
sound
1
stalwart
1
top tier
1
well-founded(adjective, undeniable)
0
able-bodied
0
actual
0
adequate
0
advantageous
0
airless
0
animal
0
athletic
0
beefy
0
beneficial
0
bombproof
0
brawny
For more, visit Unsubstantial on Power Thesaurus
10 years ago|1.2k views|share |citing 
APASmart Define. (2016). unsubstantial thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/unsubstantial/thesaurus/antonyms
ChicagoSmart Define. 2016. "unsubstantial thesaurus" https://smartdefine.org/unsubstantial/thesaurus/antonyms (accessed September 26, 2026).
HarvardSmart Define 2016, unsubstantial thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/unsubstantial/thesaurus/antonyms>.
MLASmart Define. "unsubstantial thesaurus" 30 March 2016. Web. 26 September 2026. <https://smartdefine.org/unsubstantial/thesaurus/antonyms>