Share WhatsApp Facebook Twitter Pinterest Email Lessen Definition: Diminish or to cause something to be diminished or reduced. Synonyms: Lighten, Assuage, Allay, Mitigate, Soften Antonyms: Heighten, Toughen, Enlarge, Escalate, Extend 0 Related Posts Abandon – Definition, Synonyms and Antonym December 26, 2021 Abash – Definition, Synonyms and Antonym December 26, 2021 Abbreviate – Definition, Synonyms and Antonym December 26, 2021 Write A Comment Cancel Reply Save my name, email, and website in this browser for the next time I comment. Δ