Synonyms for Lessen

Synonyms starting with letter I

• impair

  reduce, diminish, lower
• impede
• impoverish
• improve
• inhibit
• injure
• infrigidate
• incapacitate
• invalidate
• irrigate
• idle
• indulge
• impaired
• idled
• ignore
• impose
• insult
• inhale
• interrupt
• include
• import
• incorporate
• initiate
• intermit
• imbalance
• imprison
• increase
• incarcerate
• incriminate
• introduce
• incite
• inject