SUBOPTIMAL
Meaning of SUBOPTIMAL in English
/sub op"teuh meuhl/ , adj.
being below an optimal level or standard.
Also, suboptimum /sub op"teuh meuhm/ .
[ 1930-35; SUB- + OPTIMAL ]
Random House Webster's Unabridged English dictionary.
Полный английский словарь Вебстер - Random House .
2012