expressionless

As adjectives the difference between boring and expressionless

is that boring is causing boredom while expressionless is without expression.

As a noun boring

is a pit or hole which has been bored.

As a verb boring

is present participle of lang=en.

As adjectives the difference between tiring and expressionless

is that tiring is that tires or tire while expressionless is without expression.

As a verb tiring

is present participle of lang=en.

As a noun tiring

is action of the verb to tire.

Hollow is a synonym of expressionless.

As adjectives the difference between hollow and expressionless

is that hollow is (of something solid) having an empty space or cavity inside while expressionless is without expression.

As an adverb hollow

is (colloquial) completely, as part of the phrase beat hollow or beat all hollow.

As a noun hollow

is a small valley between mountains; a low spot surrounded by elevations.

As a verb hollow

is to make a hole in something; to excavate (transitive) or hollow can be to urge or call by shouting; to hollo.

As an interjection hollow

is .

Expressionless is a related term of rumbling.

As adjectives the difference between expressionless and rumbling

is that expressionless is without expression while rumbling is deep and slow sounding.

As a noun rumbling is

the sound of complaint.

As a verb rumbling is

.

Tiresome is a related term of expressionless.

As adjectives the difference between tiresome and expressionless

is that tiresome is causing fatigue or boredom; wearisome while expressionless is without expression.

is a related term of expressionless.

As adjectives the difference between dead and expressionless

is that dead is no longer living while expressionless is without expression.

As an adverb dead

is exactly right.

As a noun dead

is (time when coldness, darkness, or stillness is most intense) Time when coldness, darkness, or stillness is most intense.

As a verb dead

is formerly, "be dead" was used instead of "have died" as the perfect tense of "die".

Insensible is a related term of expressionless.

As adjectives the difference between insensible and expressionless

is that insensible is unable to be perceived by the senses while expressionless is without expression.

As adjectives the difference between unimaginative and expressionless

is that unimaginative is not imaginative while expressionless is without expression.

Expressionless is a related term of humdrum.

As adjectives the difference between expressionless and humdrum

is that expressionless is without expression while humdrum is lacking variety or excitement; dull; boring.

As a noun humdrum is

the quality of lacking variety or excitement; dullness.