Wiktionary
a. (context obsolete English) (en-comparative of: profound)
Usage examples of "profounder".
There are even cases where enchantment mixes with the disgust - namely, where by a freak of nature genius is tied to some such indiscreet billygoat and ape, as in the case of the Abbe Galiani, the profoundest, most clear-sighted, and perhaps also filthiest man of his century - he was far profounder than Voltaire and consequently also a good deal more taciturn.
This is a topic, therefore, in which the profounder and more philosophical sceptics will always triumph, when they endeavour to introduce an universal doubt into all subjects of human knowledge and enquiry.
The differences between the life of the Cainozoic and Mesozoic periods are far profounder than the resemblances.
In brief, this Castalian culture of ours, sublime and aristocratic though it certainly is, and to which I am profoundly grateful, is for most of those associated with it not an instrument they play on like a great organ, not active and directed toward goals, not consciously serving something greater or profounder than itself.