Ideal amount or state (7)
I believe the answer is:
optimum
(Other definitions for optimum that I've seen before include "Most favourable (conditions)" , "Best (result)" , "top condition" , "Best, most favourable" , "The best possible" .)
I believe the answer is:
optimum
(Other definitions for optimum that I've seen before include "Most favourable (conditions)" , "Best (result)" , "top condition" , "Best, most favourable" , "The best possible" .)