形容词
1. 清楚明白的；不会弄错的；确定无疑的
If you describe something as unmistakable, you mean that it is so obvious that it cannot be mistaken for anything else.
1. clearly evident to the mind
e.g. his opposition to slavery was unmistakable
2. clearly revealed to the mind or the senses or judgment
e.g. the effects of the drought are apparent to anyone who sees the parched fields
evident hostility
manifest disapproval
patent advantages
made his meaning plain
it is plain that he is no reactionary
in plain view