ostracize
ostracise
shirk
keep at arm's length
nonconfrontation
muzzle
gag
hedge
don't get someone started
hold one's tongue
bite one's tongue
bite one's lip
antisocial
silence
get off of someone's cloud
antipolitics
give the go-by
keep mum
send packing
drop
send away
dismiss
unmentionable
anticonfrontational
stonewall
leave alone
end run
put someone on ice
anticontact
evasive
draw a veil over
discretion is the better part of valour
skate over
antiverbal
hold one's peace
at arm's length
avoid
bat away
chat
iggy
zip one's lip
argue round and round
fight shy
cede the field
hold
unprompted
umlessness
cone of silence
deflect
keep one's distance