What is the comparative form of “roomy”?

The comparative form of “roomy” is “roomier”.

Example

The new apartment is roomier than the old one.

Example

The minivan is roomier than the sedan.

What is the superlative form of “roomy”?

The superlative form of “roomy” is “roomiest”.

Example

Among all the houses, the mansion is the roomiest.

Example

The SUV is known for being the roomiest vehicle.

Why is this expression not used with most, more?

'Most' and 'more' are generally not used with roomy, roomier, and roomiest. They’re considered regular comparatives and superlatives. The forms 'more roomy' and 'most roomy' are not used because they sound awkward. Instead, roomier and roomiest are the correct and preferred forms to use.

Does this expression have an irregular comparative/superlative form?

Roomy does not have an irregular comparative or superlative form. It follows the standard pattern for forming comparatives and superlatives. So, to summarize: Comparative: Roomy → Roomier Superlative: Roomy → Roomiest

Expressions with similar meanings to “roomier”

spacier

Used to describe something that has more space in a comfortable or luxurious manner

Example

The spacier hotel room allowed us to spread out and relax.

more spacious

A slightly formal way of expressing increased space

Example

The more spacious living room can accommodate larger gatherings.

Expressions with similar meanings to “roomiest”

spaciest

Similar to roomiest, this emphasizes both space and comfort

Example

The spaciest cabin on the cruise ship provided a luxurious experience.

most spacious

A slightly formal way of expressing the highest level of space

Example

The most spacious conference room can accommodate large meetings.

Using than with comparative “roomier”

When using the comparative form roomier to compare two things, you would use than to connect the two parts of the comparison: Example: "The new house is roomier than the old one." Here, than is used to show that the amount of space in the new house is greater than the amount of space in the old one.

How can I use this expression in context?

“roomier” and “roomiest” can be used in a variety of situations to compare speed.

1Housing
The new apartment is roomier than the old one.
The new apartment is roomier than the old one.
2Vehicles
The minivan is roomier than the sedan.
The minivan is roomier than the sedan.
3Hotels
The spacier hotel room allowed us to spread out and relax.
The spacier hotel room allowed us to spread out and relax.
4Gatherings
The more spacious living room can accommodate larger gatherings.
The more spacious living room can accommodate larger gatherings.