The word from that list with potential negative connotation is Tangled.
As a verb, it implies that something is being complicated or muddled probably with negative intentions. As a noun, it can be synonim for knot or for confusion. It can be used to imply that something is a mess, or a person is lost in a labyrinthic situation.
On the other hand, the other words have positive connotations: fresh can be applied to food that is in optimal condition for consumption or a breeze of fresh air that feels good.
Rare does not have a negative connotation. I.e. when you achieve a goal or do something that is not so common, rare implies that you beat the odds.