Skinny
Typically negative; words like 'slim' and 'thin' have a more positive connotation. Skinny means overly thin, in my point of view. Hope this helps:)
Yes, probably more so than mere "thin".
skinny
i love being skinny.
Skinny is an adjective because it describes a noun, e.g. A skinny person.
skinny ( Apex)
I would use slender in place of skinny
slender
flaco/a
"Betrayal" typically has a negative connotation as it implies the breaking of trust or loyalty.
maigre