forbidden

[ fer-bid-n, fawr- ]
/ fərˈbɪd n, fɔr- /

verb

a past participle of forbid.

adjective

not allowed; prohibited: a forbidden food in his religion.
Physics. involving a change in quantum numbers that is not permitted by the selection rules: forbidden transition.

Related forms

Can be confused

forbade forbid forbidden forebode (see synonym study at forbid)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for unforbidden

British Dictionary definitions for unforbidden

forbidden

/ (fəˈbɪdən) /

adjective

not permitted by order or law
physics involving a change in quantum numbers that is not permitted by certain rules derived from quantum mechanics, esp rules for changes in the electrical dipole moment of the system

usage

It was formerly considered incorrect to talk of forbidding someone from doing something, but in modern usage either from or to can be used: he was forbidden from entering/to enter the building
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012