Fac"tious (?). a. [L. factiosus: cf. F. factieux.] 1. Given to faction; addicted to form parties and raise dissensions, in opposition to government or the common good; turbulent; seditious; prone to clamor against public measures or men; -- said of persons.

Factious for the house of Lancaster.

2. Pertaining to faction; proceeding from faction; indicating, or characterized by, faction; -- said of acts or expressions; as, factious quarrels.

Headlong zeal or factious fury.

-- Fac"tious*ly, adv. -- Fac"tious- ness, n.

• of, pretaining to or caused by factions
  
• given to or characterized by discordance or insubordination
  
• the state of being factious
  
• in a factious manner