insupportable

1. ADJ If you say that something is insupportable, you mean that it cannot be coped with or accepted. 不能忍受的; 不能接受的[正式]

Too much spending on rearmament would place an insupportable burden on the nation's productive capacity. 過於龐大的重整軍備開支會給國家的生産力帶來難以承受的負擔。

The thought was somehow insupportable. 這種想法在某種程度上不能讓人接受。