An accident was an action performed unintentionally.
History[]
Dolly became the first woman on the Moon in the 19th century accidentally as the Eleventh Doctor meant to take her to Bognor instead. (PROSE: Hello! [+]Tom MacRae, The Crash of the Elysium tie-ins (Punchdrunk and BBC, 2011).)
A few months prior to March 2005, there was an industrial accident at the council where Pete Lambert, which was "hushed up". (PROSE: Have You Seen This Man? [+]various authors, Who is Doctor Who? (BBC, 2005).)
On 2 April 2005, the new webmaster referred to when Rose Tyler disappeared as "the night of the accident". (PROSE: The Doctor Was Involved in the Dummy Massacre [+]BBC webteam, Who is Doctor Who? (BBC, 2005).)
The deaths of the PM and his Cabinet (PROSE: Mars [+]BBC webteam, Who is Doctor Who? (BBC, 2005).) in March 2006 at the hands of the Slitheen family (TV: Aliens of London [+]Russell T Davies, Doctor Who series 1 (BBC One, 2005)., World War Three [+]Russell T Davies, Doctor Who series 1 (BBC One, 2005).) were covered up as accidents. (PROSE: Mars [+]BBC webteam, Who is Doctor Who? (BBC, 2005).)
Having become pregnant unintentionally later in 2006, Cathy Salt described her unborn child as a "nice accident". (TV: Boom Town [+]Russell T Davies, Doctor Who series 1 (BBC One, 2005).)
Goblins weaved through themselves in the world through accidents and coincidence. Ruby Sunday asked the Fifteenth Doctor if they caused all accidents and he suggested that maybe they did. (TV: The Church on Ruby Road [+]Russell T Davies, Doctor Who Christmas Special 2023 (BBC One and Disney+, 2023).)