There are a few possibilities for a tree that looks like a cedar but appears dead in winter, depending on what you mean by "looks like a cedar."

Here are some likely candidates:

* Eastern Redcedar (Juniperus virginiana): This common conifer is actually a juniper, not a true cedar. It has a similar shape and scale-like foliage to some cedar species. However, its foliage does turn a dull, brownish color in winter, making it appear dead.

* Other Juniper species: There are many other juniper species that share the same winter color change as the Eastern Redcedar.

* Bald Cypress (Taxodium distichum): Though not a cedar, this tree has a similar growth habit and feathery foliage. It is deciduous, meaning it loses its leaves in the fall, and appears completely bare in the winter.

To help narrow down the possibilities, consider these factors:

* Location: Where is the tree growing? Some species are more common in certain regions.

* Foliage: Does the tree have needles or scales? Is it a true cedar or a juniper?

* Shape: What is the overall shape of the tree? Is it upright, weeping, or spreading?

It's best to get a more precise identification with the help of a local arborist or a field guide to trees.

Let me know if you can provide more details about the tree you're curious about, and I may be able to give you a more definitive answer.