firm nesses (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, pull on, put away, quaff, sip, slosh, slurp, soak up, sop, sponge, suck, swallow, swig, swill, tank up, thirst, tipple, toast, toss off, wash down, wet one's whistle, wet whistle
Antonime: disinterest,
doubt,
hesitation, irresolution, spinelessness, vacillation