“My mother disapproved of Hanukah but, in the unsoundable depths of their marriage, a compromise had been reached.”

“Two impressive cascades flow in Gourg d'Enfer, pit considered unsoundable, and overhung by a high cliff.”

“It probes the unsoundable one and its fruitfulness is a search of the spirit.”

“The theoretical arguments claiming that the hypothesis is unsound misunderstand the nature of the hypothesis.”

“Giorgio's claims about ancient aliens are completely unsound and should be dismissed entirely.”

“Perhaps Danielle's insistence that the meeting had never taken place had left her feeling that others may judge her to be mentally unsound.”

“They are mountains of huge boulders full of chasms that go down to unsounded depths.”

“Words are said to be silent when they are unsounded in the pronunciation, though introduced in spelling and writing.”

“No two cartographers, of course, will produce exactly the same set of contours in unsounded portions of the mapped area.”