1. without qualification; used informally as (often pejorative) intensifiers;

   "an arrant fool"
   "a complete coward"
   "a consummate fool"
   "a double-dyed villain"
   "gross negligence"
   "a perfect idiot"
   "pure folly"
   "what a sodding mess"
   "stark staring mad"
   "a thoroughgoing villain"
   "utter nonsense"
   "the unadulterated truth"
   

1.坏透的；彻头彻尾的
arrant is used to emphasize that something or someone is very bad in some way.

e.g. That'sarrant nonsense.
那完全是一派胡言。
e.g. ...anarrant coward.
十足的懦夫

1. 极恶的：arranging 安排 |arrant 极恶的 |arrantly 声名狼籍地

2. 彻头彻尾的：ignorant 无知的 |arrant 彻头彻尾的 | aberrant 脱离常轨的

3. 彻头彻尾的, 声名狼藉的, 极恶的：124. patter 使发嗒嗒声, 喋喋不休地说 | 125.arrant 彻头彻尾的, 声名狼藉的, 极恶的 | 126. pestiferous 传播疾病的, 邪恶的

4. 臭名昭著的：546 anthracite ...................无烟煤 | 547arrant ...................臭名昭著的 | 548 arrowroot ..........葛