Meanings of weird impressiveness in English

Of the weird impressiveness of the scene there could be no doubt.

Two hundred and thirty-nine girl voices chanted the Wo-he-lo Cheer with weird impressiveness.

The shrine and the details of this rock-bound temple were very simple, but there was a weird impressiveness about it.

In reply the woman raised her shriveled hand, with a gesture that was not without its weird impressiveness, and pointed to his apartments.

And again there is Robert Buchanan's "Ballad of Judas Iscariot" which Mr. Stedman compares for " weird impressiveness and power" with "The Ancient Mariner."