1) Allin 2) Aweary 3) Bleary 4) Clappedout 5) Exhausted 6) Fagged 7) Run-down 8) Spent 9) Tired 10) Weary 11) Worn 1) Dog-tired 2) Drained of energy 3) Exhausted 4) Extremely tired 5) Fagged 6) Played out 7) Spent 8) Tired 9) Washed-out 10) Worn out 11) Worn-out 
• (imp. & p. p.) of Fatigue
a structural failure of the filter medium due to flexing caused by cyclic differential pressure.