The difference between Bottomless and Boundless

When used as adjectives, bottomless means having no bottom, whereas boundless means without bounds, unbounded.

check bellow for the other definitions of Bottomless and Boundless

Bottomless as an adjective:

Having no bottom.
Bottomless as an adjective:

Extremely deep.
Bottomless as an adjective:

Having no bounds; limitless.

Examples:

"The restaurant offered bottomless drinks."
Bottomless as an adjective:

Difficult to understand; unfathomable.
Bottomless as an adjective:

Not wearing clothes below the waist; particularly not wearing clothes that would cover the genitalia.