Synonyms for Dead (same or very similar meaning)
WordNet sense 1 (very tired):
beat, bushed, all in
WordNet sense 2 (depleted of strength or energy):
tired
WordNet sense 3 ((followed by `to') not showing human feeling or sensitivity; unresponsive):
numb
WordNet sense 4 (deficient in human sensibility; not mentally or morally sensitive):
insensitive
WordNet sense 5 (devoid of physical sensation; numb):
deadened
WordNet sense 6 (not reverberant; lacking a tendency to reverberate):
nonresonant, unreverberant
WordNet sense 7 (not yielding a return):
idle
WordNet sense 8 (producing little or no profit or gain):
unprofitable
WordNet sense 9 (sharply exact or accurate or delimited):
precise
WordNet sense 10 (not circulating or flowing):
stagnant
WordNet sense 11 ((of fluids) not moving or flowing):
standing
WordNet sense 12 (not performing or able to perform its regular function):
nonfunctional, malfunctioning
WordNet sense 13 (no longer in existence; lost or especially having died out leaving no living representatives):
extinct, nonextant
WordNet sense 14 (not elastic):
inelastic
WordNet sense 15 (not operating):
inoperative
WordNet sense 16 (not current or belonging to the present time):
noncurrent
WordNet sense 17 (having every necessary or normal part or component or step):
complete
WordNet sense 18 (drained of electric charge; discharged):
drained
WordNet sense 19 (of a particle or body or system; having no charge):
uncharged
WordNet sense 20 (not animated or enlivened; dull):
unanimated
WordNet sense 21 (not endowed with life):
nonliving, non-living
WordNet sense 22 (not having the capacity to support life):
lifeless
WordNet sense 23 (being out or having grown cold):
out
WordNet sense 24 (incapable of sustaining life):
barren
WordNet sense 25 (deprived of life; no longer living):
exanimate
WordNet sense 26 (having died recently):
late
WordNet sense 27 (having ceased to exist or live):
defunct
WordNet sense 28 (having the physical appearance of death):
deathlike
WordNet sense 29 (lacking the warmth of life):
cold
WordNet sense 30 (appearing dead; not breathing or having no perceptible pulse):
inanimate
WordNet sense 31 (dead):
deceased, gone
WordNet sense 32 (quickly and without warning):
abruptly, short, suddenly
WordNet sense 33 (lacking activity; lying idle or unused):
inactive
WordNet sense 34 (completely and without qualification; used informally as intensifiers):
absolutely, perfectly, utterly
WordNet sense 35 (total):
utter
WordNet sense 36 (perfect or complete or pure):
absolute
From the ODE community, based on WordNet
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