1. unbeknown - Adjective
2. unbeknown - Adverb
3. unbeknown - Adjective Satellite
Not known; unknown.
Source: Webster's dictionaryZekle crep' up quite unbeknown An' peeked in thru' the winder, An' there sot Huldy all alone, 'Ith no one nigh to hender. James Russell Lowell
a crisis unbeknown to me Source: Internet
she had been ill for months, unbeknownst to the family Source: Internet
unbeknownst to me, she made all the arrangements Source: Internet
Far from standing on the defensive therefore – and unbeknown to Marlborough – Louis XIV was persistently goading his marshal into action. Source: Internet
Unbeknown to Goring, in 1640 the document "failed to pass the Great Seal before King Charles I fled London, which it needed to do for legal execution ". Source: Internet