1. (logic) a statement that is necessarily true
   "the statement 'he is brave or he is not brave' is a tautology" 
2. Useless repetition
   "to say that something is 'adequate enough' is a tautology"

Derived forms: tautologies

See also: tautological

Type of: repetitiousness, repetitiveness, true statement, truth

Encyclopedia: Tautology

• hardbake
• hardball
• hardboard
• hardbound
• hardcore
• hardcover
• harden
• Hardenbergia
• Hardenbergia comnptoniana
• hardened
• hardener
• hardening
• hardening of the arteries
• hardfisted
• hardhead
• hardheaded
• hardheads
• hardhearted
• hardheartedness
• hardihood
• hardily
• hardiness
• Harding
• hardinggrass
• hardish