closed (adj.)
- arcane
- authoritarian
- bigoted
- blank
- blind
- borne
- cabalistic
- cecal
- censored
- choked
- classified
- close
- concealed
- constricted
- contracted
- cramped
- cryptic
- dark
- dead
- dead-end
- deaf
- enigmatic
- esoteric
- fanatical
- hermetic
- hidden
- hidebound
- hush-hush
- illiberal
- impenetrable
- impervious
- inaccessible
- inflexible
- inhospitable
- insular
- latent
- little
- mean
- mysterious
- narrow
- narrow-minded
- nearsighted
- obstinate
- occult
- parochial
- petty
- provincial
- purblind
- restricted
- secret
- shortsighted
- shut
- small
- small-minded
- smothered
- stifled
- straitlaced
- stuffy
- suppressed
- ulterior
- un-come-at-able
- unaccessible
- unapproachable
- unattainable
- unavailable
- uncharitable
- uncordial
- undisclosed
- undiscoverable
- unfriendly
- ungenerous
- ungracious
- unimpressionable
- unmovable
- unneighborly
- unobtainable
- unopen
- unopened
- unpersuadable
- unprocurable
- unreachable
- unreceptive
- unresponsive
- unrevealed
- unspoken
- unsusceptible
- untellable
- untold
- unutterable
- unuttered
- unvented
- unventilated
- unyielding
