Urinous is an adjective that describes something that is related to or has characteristics of urine. However, there are a few synonyms that can be used instead of urinous to describe a similar condition. The first synonym is urinary, which refers to anything related to the urinary system or urine. Another synonym that can be used in place of urinous is uretic, which describes something that is related to the urethra or urine. Similarly, uremic can be used instead of urinous to describe something that is caused by or related to urea buildup in the blood. Lastly, ammoniacal can be used to describe something that has a strong smell of ammonia, which can be associated with urine.