See wobbly in Webster's New World Roget's A-Z Thesaurus II
adjective
Not physically steady or firm:
precarious, rickety, shaky, tottering, tottery, unstable, unsteady. See flexibleLacking stability:
infirm, insecure, precarious, shaky, tottering, tottery, unstable, unsteady, unsure, weak. See change, strong
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