* Swain: This word refers to a young man, often a shepherd or a lover.
* Mistrustless: This word means "without suspicion" or "trusting."
* Smutted: This word means "soiled" or "stained." It could also refer to something that is sexually suggestive or vulgar.
* Face: This refers to the literal face of the swain, but it can also be a metaphor for his character or reputation.
Putting it together:
The line is most likely a description of a young man who is completely trusting, even though he might have a tainted reputation or a sullied image.
Here are some possible interpretations:
1. He is unaware of his own flaws: The "smutted face" represents some hidden flaw or dark secret that the swain is oblivious to.
2. He is innocent despite appearances: The swain may be good at heart despite appearing untrustworthy or having a bad reputation.
3. He is blinded by love: The swain is so in love that he is unable to see the potential danger of his trusting nature.
The phrase is likely meant to be ironic or to create a sense of dramatic tension. It suggests that the swain's lack of mistrust might lead to his downfall.
It's important to note that the meaning of this phrase can be highly contextual. To understand its true significance, we would need to see the line in the context of the larger poem or story.