我觉得自己似乎犯了个不可容忍的低级错误。用英语怎么说？

我觉得自己似乎犯了个不可容忍的低级错误。

I felt as if I had made an outrageous howler.

felt

n. 毛毡；v. 摸索( feel的过去式和过去分词 )，触，深感，以为；

例句
She felt as if his words had granted her absolution.
她感觉他的那番话好似给她下了道赦令。

as

adv. 同样地，一样地，例如；prep. 作为，以…的身份，如

例句
As far as I can recall, Patti was a Smith.
我记得帕蒂是姓史密斯的。

if

conj. 如果，倘若，即使，〈口〉是否，假设；n. 条件，设想；

例句
She was old enough to absent herself from the lunch table if she chose...
她长大了，可以自己做主不来吃午餐了。

had

v. 有（ have的过去式和过去分词 ），（亲属关系中）接受，拿，买到；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

made

adj. …制的，（人工）做成的，拼成的，虚构的，保证成功的；v. 使(make的过去式和过去分词)；

例句
Single people are treated as an aberration and made to pay a supplement.
独身者被当成异类，而且要付一笔额外的费用。

an

art. 一（在元音字母前代替不定代词a），一任一某一，一个；

例句
He started eating an apple...
他开始吃苹果。

outrageous

adj. 粗暴的，无法容忍的，反常的，令人惊讶的；

例句
The judge ruled a mistrial and cited the prosecutors for outrageous misconduct.
法官裁定为无效审判，并以严重渎职为名传讯了检察官。

howler

n. <英，非正>（尤指言谈或行文中的）愚蠢的错误；

例句
The car came a howler on the road.
车在途中出了事故.