Learn how to use the comparative “more poisonous” and superlative “most poisonous” with example sentences and differences.

What is the comparative form of “poisonous”?

The comparative form of “poisonous” is “more poisonous”.

Example

The venom of a black mamba snake is more poisonous than that of a cobra.

Example

Certain mushrooms are more poisonous than others.

What is the superlative form of “poisonous”?

The superlative form of “poisonous” is “most poisonous”.

Example

The poison dart frog is known as the most poisonous creature on Earth.

Example

The bite of a box jellyfish is considered the most poisonous sting in the world.

Why is this expression not used with most, more?

"Most" and "more" are used with "poisonous" to form the comparatives and superlatives. The forms "more poisonous" and "most poisonous" are commonly used to indicate a higher degree of toxicity.

Does this expression have an irregular comparative/superlative form?

"Poisonous" follows the regular pattern of using "more" and "most" for forming comparatives and superlatives.

Expressions with similar meanings to “more poisonous”

more toxic

Used to describe something that is more harmful or deadly.

Example

The chemical spill resulted in more toxic water.

more lethal

Used to indicate that something is more likely to cause death.

Example

The new strain of the virus is more lethal than the previous one.

Expressions with similar meanings to “most poisonous”

most toxic

Used to describe something that is the most harmful or deadly.

Example

The radioactive material is the most toxic substance known to man.

most lethal

Used to indicate that something is the most likely to cause death.

Example

The venom of the inland taipan snake is the most lethal of any snake in the world.

Using than with comparative “more poisonous”

When using the comparative form "more poisonous" to compare two things, you would use "than" to connect the two parts of the comparison: Example: "The venom of a black mamba snake is more poisonous than that of a cobra." Here, "than" is used to show that the level of toxicity in the venom of a black mamba snake is higher than the level of toxicity in the venom of a cobra.

How can I use this expression in context?

“more poisonous” and “most poisonous” can be used in a variety of situations to compare speed.

• 1. Animals

  The venom of a scorpion is more poisonous than that of a spider.

  The venom of a scorpion is more poisonous than that of a spider.

• 2. Plants

  Some berries are the most poisonous when consumed.

  Some berries are the most poisonous when consumed.

• 3. Chemicals

  The new cleaning product is more poisonous than the previous one.

  The new cleaning product is more poisonous than the previous one.

• 4. Substances

  Mercury is the most poisonous metal known to humans.

  Mercury is the most poisonous metal known to humans.

Related idioms and phrases

A snake in the grass

Someone who pretends to be friendly but is actually dangerous or deceitful.

Example

Be careful, he's a snake in the grass.

Drink the Kool-Aid

To blindly follow or believe in something, often to one's own detriment.

Example

Don't just drink the Kool-Aid, question everything.