1. Tiresomely long; seemingly without end
   "an interminable sermon"
   - endless, eternal, unending

See also: long

• low-fat milk
• low-grade
• low-growing
• low-interest
• low-key
• low-keyed
• low-level
• low-level formatting
• low-level radioactive waste
• low-lying
• low-minded
• low-necked
• low-pass filter
• low-pitched
• low-powered
• low-pressure
• low-priced
• low-resolution
• low-rise
• low-salt diet
• low-sodium diet
• low-spirited
• low-spiritedness
• low-sudsing
• low-tech