put someone out of their misery

End prolonged suffering

To put someone out of their misery is to end their suffering, originally by killing a mortally wounded person or animal: The horse broke its leg and had to be put out of its misery.

More commonly now, it means to relieve suspense or anxiety by giving awaited information: Just tell me if I got the job—put me out of my misery.

euthanasia

mercy killing

Painless death for suffering

lethal injection · end-of-life · right to die · terminal illness · dignity · sedation · final moments · incurable · voluntary · consent

relieve suffering

comfort

Ease or soothing relief

relief · respite · mercy · solace · compassion · empathy · caring · supportive · gentleness · tenderhearted

end suspense

reveal

Make something visible

clear up · enlighten · clarify · explain · disclose · suspense · waiting · anticipation · uncertainty · anxiety

Opposites
ending versus prolonging suffering

put someone out of their miserytorture

Deliberate infliction of suffering

torment · leave someone hanging

providing resolution versus maintaining uncertainty

put someone out of their miseryleave someone hanging

Fail to conclude matters

tantalize · tease

relief vs. infliction of suffering

put someone out of their miseryrub salt in the wound

Deliberately worsen someone's distress

twist the knife

Family

someone, outermost, theirs, misery, miserably

Familiarity
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Used worldwide · Timeless · Negative · Everyday, not technical · Rated PG-13