Synonyms: precarious, shaky
Definition: not secure; beset with difficulties
Usage: a shaky marriage
Similar words: unsafe, insecure
Definition: lacking in security or safety
Usage: his fortune was increasingly insecure; an insecure future
Synonyms: rickety, shaky, wobbly, wonky
Definition: inclined to shake as from weakness or defect
Usage: a rickety table; a wobbly chair with shaky legs; the ladder felt a little wobbly; the bridge still stands though one of the arches is wonky
Similar words: unstable
Definition: lacking stability or fixity or firmness
Usage: unstable political conditions; the tower proved to be unstable in the high wind; an unstable world economy
Synonyms: shaky, shivering, trembling
Definition: vibrating slightly and irregularly; as e.g. with fear or cold or like the leaves of an aspen in a breeze
Usage: a quaking bog; the quaking child asked for more; quivering leaves of a poplar tree; with shaking knees; seemed shaky on her feet; sparkling light from the shivering crystals of the chandelier; trembling hands
Similar words: unsteady
Definition: subject to change or variation
Usage: her unsteady walk; his hand was unsteady as he poured the wine; an unsteady voice