All 40 Uses of

however
in
The Fountainhead

However, I am anxious to forestall, if possible, what appears to be a tragedy, the spectacle of a young man of your obvious mental gifts setting out deliberately to make a mess of his life.
Chpt 1.1

however = a word used to connect contrasting ideas as when using though, in spite of that, in contrast, nevertheless, etc.

More important, however, is the symbolic significance of a building such as this rising in our imperial city.
Chpt 1.4

He doesn't say much, only: 'God made the elephant for toil and the mosquito for flitting about, and it's not advisable, as a rule, to experiment with the laws of nature, however, if you want to try it, my dear child…'
Chpt 1.4

But with hard work, perhaps…Architecture is a difficult profession, however, and the competition is stiff, you know, very stiff…And now, if you'll excuse me, my secretary has an appointment waiting for me….
Chpt 1.8

It was not known to anyone, however, save to Guy Francon and a very few others, that Gail Wynand owned the corporation which owned the corporation which owned the Noyes-Belmont Hotel.
Chpt 1.9

However, a mass meeting of strike sympathizers had been called for this evening.
Chpt 1.9

It has, however, everything: the mezzanine with the colonnade and the stairway with a goitre and the cartouches in the form of looped leather belts.
Chpt 1.9

He felt, however, that he had to attend this time, because the occasion was to be in honor of the completion of one more capitol by Ralston Holcombe in some state or another.
Chpt 1.10

He bowed over her hand, however, this afternoon as usual, and she smiled from behind the silver teapot.
Chpt 1.10 *

There are, however, occasions when we are forced to acknowledge the promise of an approach—brilliantly close—to what we designate loosely by the term of greatness.
Chpt 2.3

Regrettable, however.†
Chpt 2.6

however = a word used to connect contrasting ideas as when using "though", "in spite of that", "in contrast", "nevertheless", etc.

Sorry, however, that that's all you picked out of my little speech.
Chpt 2.8

however = a word used to connect contrasting ideas as when using though, in spite of that, in contrast, nevertheless, etc.

Ellsworth, however, was the ruler of the household, by a tacit, voluntary submission of both parents, though his father could never understand the cause of his own share in that submission.
Chpt 2.9

The plaintiff's attorney stated his case in a simple opening address; it was true, he admitted, that Hopton Stoddard had given Roark full freedom to design and build the Temple; the point was, however, that Mr. Stoddard had clearly specified and expected a temple; the building in question could not be considered a temple by any known standards; as the plaintiff proposed to prove with the help of the best authorities in the field.
Chpt 2.12

I think Mr. Toohey knows that, however.†
Chpt 2.12

however = a word used to connect contrasting ideas as when using "though", "in spite of that", "in contrast", "nevertheless", etc.

However, you did have the good sense to admit that your act was futile.
Chpt 2.13

however = a word used to connect contrasting ideas as when using though, in spite of that, in contrast, nevertheless, etc.

To be logical, however, we should not think of punishment for those who are rotten.
Chpt 3.2

I do grant you, however, that Mr. Howard Roark is a great temptation to me.
Chpt 4.7

Such, however, is the whole moral atmosphere of our century—the century of the second-rater.
Chpt 4.13

They, however, are above sacrificing to any cause or consideration whatsoever.
Chpt 4.13

A great many things and people had stood in his way, however; but he had never noticed them.†
Chpt 2.6

Definitions:

(1) (however as in: However, complications may...)
though (or another expression that connects contrasting ideas)

(Based on idea 1 we might not expect idea 2, but this is a way of saying that even though idea 1 exists, we still have idea 2. Synonyms include in spite of that, despite that, nevertheless, nonetheless, on the other hand, in contrastand but.)
(2) (however as in: However much she tried...)
to whatever degree (regardless of how much; or whatever unspecified amount)
(3) (however as in: However you do it, get it done!)
in whatever way
(4) (meaning too rare to warrant focus)
meaning too rare to warrant focus:

Much more rarely (and arguably incorrectly), however can be used to intensify the word how, as when one says "However did you find her?" Grammarians would suggest using two words for that usage: "How ever did you find her?"