open and shut case

Foregone legal conclusion

An open and shut case is a matter so straightforward that the conclusion is obvious—nothing to debate, no ambiguity to resolve.

The phrase comes from legal contexts, describing cases where guilt or liability is clear from the evidence: The fingerprints made it an open and shut case.

It extends to any situation with an obvious answer or outcome.

Related

evidence · certainty · dead to rights · caught red-handed · foregone conclusion · testimony · judge · indisputable · cut-and-dried · irrefutable · clear-cut · crystal clear · black and white · plain sailing · belief · surety · clue · suspect

Opposites
evidentiary clarity

open and shut casemystery

Something unexplained or unknown

cold case · whodunit · enigma · conundrum · head-scratcher

complexity

open and shut casegray area

Ambiguous, ill-defined situation

tangled web · thorny issue · hard case · close call · toss-up

Family

open, shut, case, opens, opened, opening, opener, openness, openly

Familiarity
Top 100,000
Profile
Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G