indetectably

It might (unlawfully but perhaps indetectably) try to hold that person indefinitely and secretly, or it might do what it's now doing: charge the person, give him lawyers, let his case be heard by life-tenured federal judges, but try to keep the whole case entirely secret.

IsThatLegal? 2003

This thinning is accompanied by a greater refinement of texture, as the starch particles disappear and only indetectably small molecules remain.

On Food and Cooking, The Science and Lore of the Kitchen Harold McGee 2004

This thinning is accompanied by a greater refinement of texture, as the starch particles disappear and only indetectably small molecules remain.

On Food and Cooking, The Science and Lore of the Kitchen Harold McGee 2004

Immediately she got up from the bed, careful to sever the link at her end, as indetectably as she knew how.

Dark Mirror Diane Duane 1993

On an ordinary scale, he knew, the air current in the alveolus was indetectably gentle but on the miniaturised scale, it was gathering into a tornado.

Fantastic Voyage Asimov, Isaac, 1920- 1966

A-shrewd Okie never attempts to overwhelm a civilization by direct assault, but instead pilots it, as indetectably as possible, doing no apparent harm, adding no apparent burden, but turning history deftly and tyrannically aside at the crucial instant ...

Cities In Flight Blish, James 1957

Therefore, even though a Velantian was any Overlord's choicest prey, at the first indication of an ability to disobey their commands the monsters would cease entirely to radiate; would withdraw at once every strand of their far-flung mental nets into the fastnesses of their superbly hidden and indetectably shielded cavern.

Children of the Lens Smith, E. E. 1954

The platinum-haired twins were -- oh, ever so surreptitiously and indetectably!

Masters of Space Robert Lee [Illustrator] Berry 1925