RichThesaurus
not solid
not solid
synonyms
void
vacant
unfilled
hollow
troughlike
unstable
dimpled
insane
frail
deranged
insubstantial
shaky
unbacked
depressed
demented
alveolate
decrepit
dangerous
infundibular
in poor health
curved
incorrect
wobbly
false
unhealthy
unsteady
cup-shaped
ailing
sunken
weak
indented
notched
defective
vaulted
arched
unsafe
unsubstantial
striated
specious
pitted
unreliable
concave
unsound
unhinged
tottering
hollowed out
rickety
unwell
unbalanced
infirm
more synonyms
not solid
antonyms
solid
raised
strong
well
sound
stable
safe
convex
full