#1
unstable a. lacking stability or fixity or firmness; "unstable political conditions"; "the tower proved to be unstable in the high wind"; "an unstable world economy"
. wn #2
unstable s. [
precarious] affording no ease or reassurance; "a precarious truce"
. wn #3
unstable s. [
mentally ill, unsound] suffering from severe mental illness; "of unsound mind"
. wn #4
unstable s. disposed to psychological variability; "his rather unstable religious convictions"
. wn #5
unstable s. [
fluid] subject to change; variable; "a fluid situation fraught with uncertainty"; "everything was unstable following the coup"
. wn