What is a synonym for dull?

There are many synonyms for "dull" depending on the context. Here are some options:

General lack of excitement:

* Boring

* Tedious

* Monotonous

* Uninteresting

* Bland

* Uninspiring

Lack of sharpness:

* Blunt

* Unpointed

* Not sharp

* Muffled

Lack of brightness:

* Dim

* Dark

* Cloudy

Lack of intelligence:

* Stupid

* Slow

* Unintelligent

* Simple

Lack of energy:

* Sluggish

* Lethargic

* Listless

* Lazy

Other synonyms:

* Mediocre

* Ordinary

* Unremarkable

* Uninspiring

* Tiresome

The best synonym for "dull" will depend on the specific situation and what you want to emphasize.