Help translating この姿なら異国人も怪しまれない. Why も instead of でも?


この姿（すがた）なら異国人(いこくじん）も怪（あや）しまれない is a phrase said to someone disguised as a
catholic missionary in medieval era in Japan, so he is not suspected by having
a western face in the asian country.

I saw a lot of questions here about も vs でも, but generally speaking, the
answer of the questions is that も means "also" and でも means "even", with the も
particle playing the role of the が or を particle, including a subject or
object in a list to interact with the verb, while the でも particle ephasizes an
element on a list as being against the odds.

But in the phrase この姿なら異国人も怪しまれない, using that logic, も does not seem to fit.
It does not makes sense if 異国人 is a subject of the passive form of the verb
怪しむ, because then 異国人 would be the person being suspected by someone, and not
what someone is being suspected of, what makes more sense by the context.

An user in another japanese language forum translated it as "with that outfit,
you won't be suspected even being a foreigner", what for me would make sense
if the phrase had a でも instead of も.




異国人 _is_ the subject of the verb 怪しまれる, i.e., 異国人 _is_ the one being
potentially suspected by someone else. この姿なら異国人 **も** 怪しまれない is simply
この姿なら異国人 **は** 怪しまれない with は replaced by も. The object of 怪しむ can be either a
person or a property of a person.

> この姿なら異国人 **も** 怪しまれない。  
>  (Japanese people won't be suspected because they are Japanese, but) _also_
> foreigners won't be suspected if they look like this.

この姿なら異国人 **でも** 怪しまれない is also perfectly fine, and the difference in meaning
is subtle. If you had explicitly asked for a super-literal, word-by-word
translation, the user in the other forum might have given a different
translation respecting the difference between も and でも.




異国人 _is_ the subject of the verb 怪しまれる, i.e., 異国人 _is_ the one being
potentially suspected by someone else. この姿なら異国人 **も** 怪しまれない is simply
この姿なら異国人 **は** 怪しまれない with は replaced by も. The object of 怪しむ can be either a
person or a property of a person.

> この姿なら異国人 **も** 怪しまれない。  
>  (Japanese people won't be suspected because they are Japanese, but) _also_
> foreigners won't be suspected if they look like this.

この姿なら異国人 **でも** 怪しまれない is also perfectly fine, and the difference in meaning
is subtle. If you had explicitly asked for a super-literal, word-by-word
translation, the user in the other forum might have given a different
translation respecting the difference between も and でも.

