A medical man likes to make psychological observations, and sometimes in the pursuit of such studies is too easily tempted into momentous prophecy which life and death easily set at nought.
Dorothea was in fact thinking that it was desirable for Celia to know of the momentous change in Mr. Casaubon’s position since he had last been in the house: it did not seem fair to leave her in ignorance of what would necessarily affect her attitude towards him; but it was impossible not to shrink from telling her.
Such reasons would have been enough to account for plain dress, quite apart from religious feeling; but in Miss Brooke’s case, religion alone would have determined it; and Celia mildly acquiesced in all her sister’s sentiments, only infusing them with that common-sense which is able to accept momentous doctrines without any eccentric agitation.
Perhaps the person who felt the most throbbing excitement at this moment was Mary Garth, in the consciousness that it was she who had virtually determined the production of this second will, which might have momentous effects on the lot of some persons present.
Meanwhile, in his conversation with Raffles, he had learned something momentous, something which entered actively into the struggle of his longings and terrors.
She was too much excited by these thoughts to do anything but light stitching in a warm corner of the dining-room, with the outside of this momentous letter lying on the table before her.
For in case of unpleasant suspicions, or even knowledge gathered from the raving of Raffles, Bulstrode would have felt that he had a defence in Lydgate’s mind by having conferred a momentous benefit on him.
After three months Freshitt had become rather oppressive: to sit like a model for Saint Catherine looking rapturously at Celia’s baby would not do for many hours in the day, and to remain in that momentous babe’s presence with persistent disregard was a course that could not have been tolerated in a childless sister.
Rosamond had that morning entreated him to urge this step on Lydgate; and it seemed to him as if he were beholding in a magic panorama a future where he himself was sliding into that pleasureless yielding to the small solicitations of circumstance, which is a commoner history of perdition than any single momentous bargain.
…thought that after all his wild mistakes and absurd credulity, he had found perfect womanhood—felt as if already breathed upon by exquisite wedded affection such as would be bestowed by an accomplished creature who venerated his high musings and momentous labors and would never interfere with them; who would create order in the home and accounts with still magic, yet keep her fingers ready to touch the lute and transform life into romance at any moment; who was instructed to the true…
There are no more uses of "momentous" in the book.