weakness; debility; breakdown; prostration
decline; degeneration; decay; waning; ebbing
attenuation; damping; decay
senility; senile decay; infirmity (through age)
neurasthenia; nervous breakdown; concentration (card game involving turning over face-down cards to find identical pairs)
death from prostration; death from emaciation
rise and fall; ups and downs; welfare; vicissitudes
decline and fall; ruin; downfall; collapse
ups and downs of life; vicissitudes of fortune
even the prosperous inevitably decay; sic transit gloria mundi; all that's fair must fade
phase of decline; ebb; twilight
decline; downfall; ruin(ation)
five signs of the impending death of a heavenly being
attenuation (factor, rate)
inevitable decline (decay, collapse, etc.)
downward tendency; decay; decline
rise and fall; ups and downs; waxing and waning; prosperity and decline; vicissitudes
rise and fall; prosperity and decline; vicissitudes
prosperity and decay; rise and fall; ebb and flow; vicissitudes (of fortune)
(falling into a) continuous decline; being on the wane
becoming emaciated and die; wither away
fading color; fading colour; fading beauty
damping ratio; decay constant
weakened condition; state of decline