open and shut

Beyond all doubt

Open and shut describes something easily settled or decided, with no room for doubt or argument: an open-and-shut case.

The phrase suggests a matter so clear it can be opened, examined, and closed immediately—no deliberation needed.

Almost always appears before a noun, especially *case*.

indisputable

conclusive

Ending all debate

unassailable · unquestionable · definitive · decisive · absolute · certain · watertight · airtight · bulletproof · ironclad

obvious

clear-cut

Plainly evident, unmistakable

manifest · plain · blatant · conspicuous · unmistakable · transparent · patent · overt · glaring · self-evident

simple

uncomplicated

Easy to understand

effortless · manageable · easy · routine · formulaic · predictable · no-frills · clear · direct · unambiguous

legal

verdict

Official court decision

innocent · judgment · evidence · prosecution · defense · plea · testimony · case · ruling · dismissal

Categories
Opposites
certainty/clarity

open and shutambiguous

Having multiple interpretations

unclear · contested · debatable · disputable · questionable

complexity

open and shutcomplicated

Difficult to understand

complex · convoluted · intricate · thorny · knotty

Family

open, shut, opening, opened, opens, shutter, opener, shutdown, shuts

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Everyday, not technical · Rated G