UNDERACTIVE
Meaning of UNDERACTIVE in English
— underactivity, underactiveness , n.
/un'deuhr ak"tiv/ , adj.
insufficiently active: an underactive thyroid gland.
[ 1955-60; UNDER- + ACTIVE ]
Random House Webster's Unabridged English dictionary.
Полный английский словарь Вебстер - Random House .
2012