Here are some synonyms for "sedimentary," depending on the context:

General synonyms:

* Deposited

* Stratified

* Layered

* Accumulated

* Precipitated

More specific synonyms:

* For rocks: Stratal, clastic, detrital

* For processes: Depositional, accumulation, sedimentation

Example sentences:

* General: The sedimentary evidence pointed to a volcanic eruption. (The deposited evidence pointed to a volcanic eruption.)

* Rocks: The sedimentary rock contained fossilized remains. (The stratal rock contained fossilized remains.)

* Processes: The sedimentary process created layers of sediment. (The depositional process created layers of sediment.)

Choose the synonym that best fits the specific meaning and context of your sentence.