out

bitter, vehement

certain, cocksure, confident, positive, sure

earnest, serious

steady, unfaltering, unhesitating, unswerving, unwavering

adamant, adamantine, dogged, hard, hardened, hardheaded, headstrong, immovable, implacable, inflexible, mulish, obdurate, persistent, pertinacious, perverse, pigheaded, rigid, self-willed, stubborn, tenacious, unbending, uncompromising, unrelenting, unyielding, willful (or wilful)

AWOL, truant

departed, gone, retired

abroad, vacationing

without

verbally, vocally

clearly, discernibly, distinctly, distinguishably, perceptibly, plainly

blatantly, bloody murder, boisterously, clamorously, loudly, lustily, mightily, noisily, resonantly, resoundingly, stridently, thunderously, uproariously, vociferously

absolutely, categorically, cold, downright, hands down, plain, stone, stone-cold, unqualifiedly

basically, by and large, chiefly, generally, largely, mainly, more or less, mostly, overall, predominantly, predominately, primarily, principally, substantially

abundantly, copiously, generously, greatly

apart, aside, elsewhere

abroad, afar, afield, astray

develop, transpire, unfold

disclose, reveal, spill, tell

deforce, deport, displace, dispossess, evict, exile, expatriate, ostracize, read out, shut out

ax (or axe), can, cashier, defenestrate, discharge, fire, muster out, pink-slip, release, remove, retire, sack, terminate