AskDefine | Define closed

Dictionary Definition

closed adj
1 not open or affording passage or access; "the many closed streets made travel difficult"; "our neighbors peeped from behind closed curtains" [ant: open]
2 of a curve or surface; having no end points or boundary curves; of a set; having members that can be produced by a specific operation on other members of the same set; of an interval; containing both its endpoints [ant: open]
3 not open; "the door slammed shut" [syn: shut, unopen] [ant: open]
4 used especially of mouth or eyes; "he sat quietly with closed eyes"; "his eyes were shut against the sunlight" [syn: shut] [ant: open]
5 requiring union membership; "a closed shop" [syn: closed(a)]
6 with shutters closed
7 not open to the general public; "a closed meeting"
8 not having an open mind; "a closed mind unreceptive to new ideas" [syn: unsympathetic]
9 blocked against entry; "a closed porch" [syn: closed in(p)]
10 (of the wings of birds and insects) closed together
11 shut down; "the airport is closed because of the weather"; "the many closed shops and factories made the town look deserted"

User Contributed Dictionary




  1. inaccessible; not open
  2. non public (as in closed source)
    1. (Topology) a set is closed if its complement is open
    2. (Algebra) a set is closed under an operation if the outcome for every argument is also in the set itself. (e.g. \forall x,y \in Z:\, x + y \in Z)

See also


not open (1)
non public (2)
in mathematics (3)
Translations to be checked

Extensive Definition

Closed may refer to:

See also

closed in French: Fermé

Synonyms, Antonyms and Related Words

arcane, authoritarian, beyond reach, bigot, bigoted, blank, blind, blind-alley, borne, cabalistic, cecal, censored, choked, choked off, classified, close, closed forever to, closed to, concealed, constricted, contracted, cramped, creedbound, cryptic, dark, dead, dead-end, deaf, deaf to reason, enigmatic, esoteric, fanatical, hermetic, hidden, hidebound, hush-hush, illiberal, impenetrable, impersuadable, impersuasible, impervious, inaccessible, inflexible, inhospitable, insular, latent, little, little-minded, lost to, mean, mean-minded, mean-spirited, mysterious, narrow, narrow-hearted, narrow-minded, narrow-souled, narrow-spirited, nearsighted, obstinate, occult, out of reach, parochial, petty, provincial, purblind, restricted, secret, shortsighted, shut, small, small-minded, smothered, squeezed shut, stifled, straitlaced, strangulated, stuffy, suppressed, top secret, ulterior, un-come-at-able, unaccessible, unamenable, unapproachable, unattainable, unavailable, unbreatheable, uncatholic, uncharitable, uncordial, under security, under wraps, undisclosable, undisclosed, undiscoverable, undivulgable, undivulged, unfriendly, ungenerous, ungettable, ungracious, unhospitable, unimpressionable, uninfluenceable, unliberal, unmovable, unneighborly, unobtainable, unopen, unopened, unpersuadable, unpliable, unprocurable, unreachable, unreceptive, unresponsive, unrevealable, unrevealed, unsecurable, unspoken, unsuggestible, unsusceptible, unswayable, untellable, untold, unutterable, unuttered, unvented, unventilated, unwhisperable, unyielding
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