troublous

adjective2

1. •
   (literary, no longer used) Troubled, confused; causing trouble; troublesome, vexatious.

   • On thother side they saw the warlike Mayd Al in her snow-white smocke, with locks unbowned Threatning the point of her avenging blaed; That with so troublous terror they were all dismayd. — 1590
2. •
   (no longer used) Of a liquid: thick, muddy, full of sediment.