Being in the original position; not having been moved:
— The archeologists could date the vase because it was in situ.

synoniemen: in-situ, unmoved.

In position.

In the original or natural place or site:
— Carcinoma in situ.

synoniem: in place.

Roget 183: in situ, in loco; here and there, passim; hereabouts, thereabouts, whereabouts; in place, here, there.    in such and such surroundings, in such and such environs, in such and such entourage, amidst such and such surroundings, amidst such and such environs, amidst such and such entourage.    ... meer laten zien