utmost
/ˈʌtməust; `ʌtˌmost/ (also uttermost / ˈʌtəməust;`ʌtɚˌmost/) adj [attrib 作定语]
greatest; furthest; most extreme 最大的; 最远的; 极度的
in the utmost danger 在极端的危险中
of the utmost importance 极重要的
with the utmost care 极其小心
pushed to the utmost limits of endurance 逼到忍无可忍的程度.