extinct

departed

dɪˈpɑːtɪd

adjective

dead.

a dear departed relative

dead,deceased,late,lost,lamented,gone,no more,passed away,passed on,perished,expired,extinct,(as) dead as a doornail,with God,asleep,at peace,demised

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defunct

dɪˈfʌŋ(k)t

adjective

no longer existing or functioning.

the now defunct Somerset & Dorset railway line

disused,no longer in use,unused,inoperative,non-functioning,unusable,obsolete,no longer in existence,discontinued,extinct,fossilized

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deadest

dɛd

adjective

no longer alive.

a dead body

deceased,expired,departed,gone,no more,passed on,passed away,late,lost,lamented,perished,fallen,slain,slaughtered,killed,murdered,lifeless,not breathing,having breathed one’s last,defunct,extinct,inanimate,insentient,insensate,inert,(as) dead as a doornail,six feet under,pushing up daisies,under the sod,with God,asleep,at peace,demised,exanimate

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deader

dɛd

adjective

no longer alive.

a dead body

deceased,expired,departed,gone,no more,passed on,passed away,late,lost,lamented,perished,fallen,slain,slaughtered,killed,murdered,lifeless,not breathing,having breathed one’s last,defunct,extinct,inanimate,insentient,insensate,inert,(as) dead as a doornail,six feet under,pushing up daisies,under the sod,with God,asleep,at peace,demised,exanimate

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dead

dɛd

adjective

no longer alive.

a dead body

deceased,expired,departed,gone,no more,passed on,passed away,late,lost,lamented,perished,fallen,slain,slaughtered,killed,murdered,lifeless,not breathing,having breathed one’s last,defunct,extinct,inanimate,insentient,insensate,inert,(as) dead as a doornail,six feet under,pushing up daisies,under the sod,with God,asleep,at peace,demised,exanimate

adverb

absolutely; completely.

you’re dead right

completely,absolutely,totally,utterly,deadly,perfectly,entirely,wholly,fully,quite,thoroughly,unreservedly,definitely,certainly,positively,unconditionally,categorically,unquestionably,no doubt,undoubtedly,without a doubt,without question,surely,unequivocally,exactly,precisely,decisively,conclusively,manifestly,in every way,in every respect,one hundred per cent,every inch,to the hilt

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bygone

ˈbʌɪɡɒn

adjective

belonging to an earlier time.

relics of a bygone age

past,former,earlier,one-time,long-ago,gone by,previous,forgotten,lost,finished,completed,of old,ancient,antiquated,obsolete,departed,dead,extinct,defunct,out of date,outmoded,passé,of yore,olden,foregone,forepassed

noun

a thing dating from an earlier time.

the museum consists of a fascinating collection of rural bygones

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