irregular-lipped

adjective
UK /ɪˈrɛɡjʊlə lɪpt/
US /ɪˈrɛɡjələr lɪpt/

Having lips that are not the same shape or not even on both sides.

The potter made a cup with an irregular-lipped rim that looked handmade.


OTHER MEANINGS

2. Having a lip or edge that is not straight or smooth.

The irregular-lipped shell had a jagged opening.

3. Describing a flower whose petals around the opening are uneven.

The irregular-lipped orchid attracted only certain bees.

4. Having a mouth or rim that is not uniform in shape.

The old jug was irregular-lipped from years of use.