unsolid

/ʌnˈsɑlɪd/
adjective
  1. Not firm, hard, or strong; lacking physical solidity.
    • She refused to sit on the unsolid chair because it wobbled.
    • The ground felt unsolid after the heavy rain turned it to mud.
    • The ice on the pond was unsolid and cracked under my weight.
  2. Not reliable, stable, or well-founded; weak or shaky in logic or structure.
    • They built their relationship on an unsolid foundation of lies.
    • His argument was unsolid and fell apart under questioning.
    • The company's financial plan looked unsolid to the investors.
Antonyms
What does "unsolid" mean? | whatsthatwordmean | whatsthatwordmean