ponderous

Adjective

• labored and dull
  • a ponderous speech
    

• having great mass and weight and unwieldiness
  • a ponderous stone
    
  • a ponderous burden
    
  • ponderous weapons
    

• slow and laborious because of weight
  • the heavy tread of tired troops
    
  • moved with a lumbering sag-bellied trot
    
  • ponderous prehistoric beasts
    
  • a ponderous yawn
    

Related words

• Synonyms: 
  heavy , lumbering