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

See also: long

• speech intelligibility
• speech organ
• speech pattern
• speech perception
• speech production
• speech rhythm
• speech sound
• speech spectrum
• speech therapist
• speech therapy
• speech-endowed
• speech-read
• speechifier
• speechify
• speechless
• speechlessly
• speechlessness
• speechmaker
• speechmaking
• speechwriter
• speed
• speed bump
• speed camera
• speed cop
• speed dating