Verb:

कुंठित हो जाना, कुंठित करना, कुंठित कर देना, मंद होना, धुंधला करना, मंद बनाना,

Adjective:

मति-मंद, निष्प्राण, खिन्न, जड़, मूर्ख, निष्क्रय, उदास, निष्प्रभ, मंद, कुंठित,

dull's Usage Examples:

Although the state has a great amount of limestone, especially in Erie and Ottawa counties, its dull colour renders it unsuitable for most building purposes.` It is, however, much used as a flux for melting iron and for making quick lime.

A damp dull autumn morning was just dawning.

He had never seen such a dull and out-of-the-way place; the folks were all gone off; why, you couldn't even hear the whistle!

Prince Bagration turned to the officer and with his dull eyes looked at him in silence.

"Never a dull moment in Transylvania," Sarah quipped.

We are going, but only wolf hunting: it would be dull for you.

Her body felt heavy and her senses dull without her magic.

It is not all books that are as dull as their readers.

"It sounds dull to me," Dulce said, and stood.

Things didn't stay dull for long, though.

Synonyms:

leaden, lackluster, arid, dreary, colorless, humdrum, drab, colourless, unanimated, lusterless, spiritless, bovine, desiccated, dullness, lustreless, heavy, lacklustre, monotonous, desiccate,

Antonyms:

colorful, animated, colourful, spirited, lively,