firm ness (noun) determination: perseverance
Sinonime: absorb, belt, booze,
consume,
dissipate,
down,
drain, gargle, gulp, guzzle, hit the bottle,
imbibe,
indulge,
inhale, irrigate, lap, liquor up, nip, partake of, put away, quaff, sip, slosh, slurp, soak up, sop, sponge,
suck, sup,
swallow, swig, swill, tank up,
thirst, tipple, toast, toss off, wash down, wet whistle
Antonime: disinterest,
doubt,
hesitation, irresolution, spinelessness, vacillation