These truths are not unfamiliar to your thoughts.

_These_ points out _what_ truths, therefore demonstrative; plural
number, having a singular, _this_; cannot be compared; modifies the
word _truths_.

_Unfamiliar_ describes _truths_, therefore descriptive; not inflected
for number; compared by prefixing _more_ and _most_; positive degree;
modifies _truths_.


Exercise.

Parse in full each adjective in these sentences:--

1. A thousand lives seemed concentrated in that one moment to
Eliza.

2. The huge green fragment of ice on which she alighted pitched
and creaked.

3. I ask nothing of you, then, but that you proceed to your end
by a direct, frank, manly way.

4. She made no reply, and I waited for none.

5. A herd of thirty or forty tall ungainly figures took their
way, with awkward but rapid pace, across the plain.