unsteadfast
131infirm — in•firm [[t]ɪnˈfɜrm[/t]] adj. 1) feeble or weak in body or health, esp. because of age 2) unsteadfast, faltering, or irresolute, as persons or the mind 3) not firm, solid, or strong 4) unsound or invalid, as an argument or a property title •… …
132unstable — un•sta•ble [[t]ʌnˈsteɪ bəl[/t]] adj. 1) not stable; not firm or firmly fixed; unsteady 2) liable to change or fluctuate quickly: an unstable weather pattern[/ex] 3) marked by emotional instability 4) unsteadfast; inconstant; wavering 5) irregular …
