deader in English

adjective

1

no longer alive.

a dead body

synonyms: passed on/away, expired, departed, gone, no more, late, lost, lamented, perished, fallen, slain, slaughtered, killed, murdered, lifeless, extinct, (as) dead as a doornail, six feet under, pushing up daisies, deceased, with God, asleep

2

complete; absolute.

we sat in dead silence

synonyms: complete, absolute, total, utter, out-and-out, thorough, unmitigated

adjective

passed on/away, expired, departed, gone, no more, late, lost, lamented, perished, fallen, slain, slaughtered, killed, murdered, lifeless, extinct, (as) dead as a doornail, six feet under, pushing up daisies, deceased, with God, asleep
barren, lifeless, bare, desolate, sterile
obsolete, extinct, defunct, disused, abandoned, discarded, superseded, vanished, forgotten, archaic, antiquated, ancient, of yore
not working, out of order, inoperative, inactive, in disrepair, broken, malfunctioning, defective, kaput, conked out, on the blink, on the fritz, bust, busted
numb, numbed, deadened, desensitized, unfeeling, paralyzed, crippled, incapacitated, immobilized, frozen
emotionless, unemotional, unfeeling, impassive, unresponsive, indifferent, dispassionate, inexpressive, wooden, stony, cold, deadpan, flat, blank, vacant
extinguished, quashed, stifled, finished, over, gone, no more, a thing of the past, ancient history
uneventful, uninteresting, unexciting, uninspiring, dull, boring, flat, quiet, sleepy, slow, lackluster, lifeless, one-horse, dullsville
complete, absolute, total, utter, out-and-out, thorough, unmitigated
unerring, unfailing, impeccable, sure, true, accurate, precise, deadly, lethal, bang on
bushed, beat, all in
stagnant
deadened
drained
numb
idle
utter

Use "deader" in a sentence

1. Synonyms for Barrener include arider, bonier, deader, poorer, starker, barer, emptier, austerer, bleaker and harsher

2. Other than the fact that he's deader than a Texas salad bar and has a decent set of pipes?