Its feeding-streams are exceedingly beautiful, notwithstanding their inconstancy and extreme shallowness.

The pale colour of the water was due to the extreme shallowness of the lagoon just here.

Conscious of the extreme shallowness of her breathing, she slid back the bolt and opened the door.

The crater-pit, however, has well-marked peculiarities which distinguish it from all other types, such as the absence of a distinguishable rim and extreme shallowness.