WordNet: close, closelipped, closemouthed, secretive, tightlipped

inclined to secrecy or reticence about divulging information; "although they knew her whereabouts her friends kept close about it"

• similar to incommunicative, uncommunicative

close

• (englanti) closeness (derivationally related)
• (suomi) vaitelias (synonyymi)

closelipped

• (suomi) vaitonainen (synonyymi)

closemouthed

• (suomi) hiljainen (synonyymi)

secretive

• (englanti) secretiveness (derivationally related)

• (englanti) secrete (derivationally related)

• (englanti) secretiveness (derivationally related)
• (suomi) salamyhkäinen (synonyymi)

• (suomi) salaperäinen (synonyymi)

tightlipped

• (suomi) niukkasanainen (synonyymi)