1. For the most part
   - principally, primarily, mainly, in the main, majorly

See also: chief

• inky-cap mushroom
• INLA
• inlaid
• inland
• inland bill
• Inland Passage
• Inland Revenue
• Inland Sea
• inlay
• inlet
• inlet manifold
• inly
• inmarriage
• inmarry
• inmate
• inmost
• inn
• innards
• innate
• innate immunity
• innate reflex
• innately
• innateness
• inner
• inner circle