Meanings of very felicitous in English

The interference of a mother-in-law is proverbially never very felicitous.'

As epigrams they are not very felicitous, but they are interesting from some points of view.

There is nothing very felicitous in these lines; yet even here the poet, if languid, is never false.

He was not easy on his feet at that time, though afterwards he became very felicitous in public speaking.

He once in my hearing used a very felicitous phrase, full of wisdom, "Government by good nature."

He had printed in a Hartford paper a very felicitous versification of Farragut's 'General Orders' in the fight at the mouth of the Mississippi.

You cannot suppose that I have any object in interrupting the leisure of a great artist, or the privacy of his very felicitous domestic relations.