Neither. Least is superlative.
little, less, least
superlative
comparative
No, the word 'mysterious' is an adjective, the positive form.Nouns do not have comparative forms.Adjectives have positive, comparative, and superlative forms; for example:mysterious (positive)more mysterious (comparative)most mysterious (superlative)
comparative
comparative
more positive
The 3 forms of adjectives are comparative, superlative, and positive. Example: Positive- bad Comparative- worse Superlative- worst
more positive, most positive
The answer to that question is comparative.
positive
The English language does not have 'positive' nouns (location is a noun); the designation for 'positive' is used for adjectives. For example: Positive: nice Comparative: nicer Superlative: nicest Positive: positive Comparative: more positive Superlative: most positive