presumptuous汉语翻译：
a. 放肆的, 冒昧的, 傲慢的词型变化：
名词:presumptuousness副词:presumptuously英语解释：
形容词 presumptuous:

excessively forward同义词：assumptive, assuming

例句：

Having or showing excessive and arrogant self-confidence; presumptuous.冒昧的，放肆的拥有或显示过分的或傲慢的自信的; 自行其事的

I dislike that presumptuous young man.我不喜欢那个自以为是的年轻人。

详细解释：
pre.sump.tu.ous
adj.（形容词）
Going beyond what is right or proper; excessively forward.
太过分的；放肆的
来源：
Middle English
中古英语
from Old French presumptueux
源自 古法语 presumptueux
from Late Latin presômptuôsus
源自 后期拉丁语 presômptuôsus
variant of praesômptiôsus
praesômptiôsus的变体
from praesômptiô [presumption] * see presumption
源自 praesômptiô [自行其事；傲慢] *参见 presumption
【引伸】
presump.tuously
adv.（副词）
presump.tuousness
n.（名词）

presumptuous