tight-lipped
stonewall
informationlessness
breast one's cards
undisclosing
journalist's privilege
nondisclosed
secretive
tightlipped
closelipped
close
nonconcurrence
noninformative
be not to know
irrevealable
closemouthed
cagey
undivulgeable
unassuring
keep quiet
understatement
unknowledgeable
palter
keep one's mouth shut
equivocate
ignorant
unknowing
tergiversate
unwitting
prevaricate
nonmention
shut one's mouth
beat around the bush
unrevealable
unconfidential
priest-penitent privilege
undivulged
unreconnoitered
leave to the imagination
uninforming
unhoaxable
draw a blank
nonspeculation
no comment
undecipherability
newsless
physician-patient privilege
detaillessness
answerless
keep to oneself