Definition of less

• used to form the comparative of some adjectives and adverbs; "less interesting"; "less expensive"; "less quickly"
• comparative of little; "she walks less than she should"; "he works less these days"
• (comparative of `little usually used with mass nouns) a quantifier meaning not as great in amount or degree; "of less importance"; "less time to spend with the family"; "a shower uses less water"; "less than three years old"