tee ‧ ter /ˈtiːtə $ -ər/ BrE AmE verb [intransitive]
[ Date: 1800-1900 ; Origin: titter 'to move unsteadily' (14-20 centuries) ]
1 . to stand or walk moving from side to side, as if you are going to fall:
She teetered along in her high-heeled shoes.
2 . be teetering on the brink/edge of something to be very close to being in an unpleasant or dangerous situation:
The country teetered on the brink of war.