1. least, lowest, minimum

noun (common) (futsuumeishi) nouns which may take the genitive case particle 'no' adjectival nouns or quasi-adjectives (keiyodoshi)

2. worst

nouns which may take the genitive case particle 'no' adjectival nouns or quasi-adjectives (keiyodoshi)

3. awful, horrible, nasty, disgusting

adjectival nouns or quasi-adjectives (keiyodoshi) nouns which may take the genitive case particle 'no'

4. at the very least

adverb (fukushi)