opening Pandora's box

Starting irreversible trouble

Opening Pandora's box is unleashing troubles that cannot be contained or reversed.

From the Greek myth where Pandora opens a forbidden container and releases all evils into the world, the phrase warns against actions with unforeseen, irreversible consequences: Legalizing that drug would open Pandora's box.

The implication is that some things, once started, cannot be stopped.

Related

curiosity · unintended consequences · Trojan horse · tip of the iceberg · hope · evils · slippery slope · ripple effect · morality · responsibility · impulsivity · catastrophe · chain reaction · domino effect · existential risk · Greek mythology · lid · forbidden fruit

Opposites
wisdom and prudence

opening Pandora's boxkeeping one's powder dry

Reserving strength for action

biding one's time · thinking twice · holding back

containment vs. release

opening Pandora's boxbottling up

Containing emotions internally

suppressing · quarantining · locking away · burying the hatchet · sweeping under the rug

Family

opened, opens, opener, openers, opening, openings, openly, openness, reopen

Familiarity
Top 200,000
Profile
Used worldwide · Timeless · Negative · Everyday, not technical · Rated G