1. Composed of or containing fibres. A fibrous fracture, that which presents fine threads or slender lines.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• firious,
• fibrois,
• fabuous,
• ferous,
• furous,
• fibors,
• fiberous,
• fiborpus,
• fibros,
• fibrics,
• fiborous,
• firous,
• fibrocis,
• fibriods,
• fabous,
• fibreous,
• fibronous,
• fibrnous,
• fibrious,
• fibrinouss

• fibre,
• furious,
• fibrositis,
• fires,
• fibrosis,
• fibs.

The adjective form of the word "fibrous" is "fibrous".

The plural form of the word "fibrous" remains the same, as it is an adjective and does not have a distinct plural form.

The singular form of the word "fibrous" is "fiber"