adverb
Etymology: solid (I) + -ly
: so as to have or give an effect of solidity: as
a.
(1) : strongly , firmly
solidly constructed furniture
(2) : securely
set solidly on its base
b. : on soundly logical or reasonable grounds
the result may be solidly inferred
c. archaic : seriously , intensively
d. : without reservation : wholly , unanimously
solidly behind the move
voted the precinct solidly for the party candidate