List of closed synonyms and closed 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