Ponderous (adj): Slow and clumsy because of high weight. (बोझल, भारी-भरकम, कष्टकारक)
Synonyms: Clumsy, Slow, Lumbering, Burdensome
Antonyms: Light, Airy, Ethereal, Feathery, Fluffy
Example: These ponderous pachyderms are more commonly shown as elephants.
A delay in positioning certain formations not only revealed the ponderous nature of India’s mobilisation plans, but also permitted Pakistan to counter-mobilise ahead of us.