Something unstable (such as quicksand or a rickety bridge) can represent: Risk, or fear of risk.
Feeling unsteady or unsure somehow in your life.
Something or someone you feel or fear is unpredictable (a precarious situation, unreliable person, etc.).
Lacking confidence or understanding.
Feeling “shaken up” or upset about something in your life.
A sense of mental or emotional unsteadiness (such as doubt, confusion, or a questionable decision).
See Also: Erratic, Earthquake Quicks, Descending, Feeling, Mentally Unstable
[1]Inconsistent in all, no sure foundation; see “foundation” and “waver”
[2]