Feculent is an adjective that means muddy or dirty.

Our word of the day is derived from the Latin faex (FAH ex) which means ‘dregs,’ a reference to any foul or undesirable sediment. Here’s an example:

The feculent matter at the bottom of the lake made our scuba adventures a lot less enjoyable than our ocean diving. It’s so much more fun to see sand and adorable sea creatures down there than muck and mud.