inexpugnable

a. 不能攻占的, 不能驳倒的

副词:inexpugnably 名词:inexpugnability 

in.ex.pug.na.ble

adj.（形容词）
Impossible to overcome or overthrow by force.
不能用武力征服或击败的
Impossible to put aside or drive away:
驱逐不了的：无法置于一旁或赶走的：
例句：
inexpugnable dislike.
驱之不去的厌恶


来源：
Middle English
中古英语
from Old French
源自 古法语
from Latin inexpugn3bilis
源自 拉丁语 inexpugn3bilis
in- [not] * see in-
in- [不] *参见 in-
expugn3bilis [capable of being overcome] from expugn3re ex- [completely] * see ex- pugn3re [to fight] * see impugn
expugn3bilis [能够被征服] 源自 expugn3re ex- [完全地] *参见 ex- pugn3re [战斗] *参见 impugn

【引伸】
in.expugnabil.ity
n.（名词）
in.expug.nably
adv.（副词）