1. lower side

- the underbellies of clouds

Definition categories: location, bottom, underside, undersurface

2. the soft belly or underside of an animal's body

Similar word(s): underbody

Definition categories: body, abdomen, belly, stomach, venter

3. the quality of being weak or unprotected

- the soft underbelly of the Axis

Definition categories: attribute

Sentences with underbelly as a noun:

- The area by the canal is the underbelly of town - not something you'd see in the guidebooks