unaware

Multiple Entries:
  unaware    unawares  

Concise Oxford English Dictionary © 2008 Oxford University Press:
unaware/ʌnəˈweə(r)/
adjective having no knowledge of a situation or fact. adverb variant of unawares.
– derivatives
unawareness noun.

Concise Oxford English Dictionary © 2008 Oxford University Press:
unawares /ʌnəˈweəz/ (also unaware)
adverb so as to surprise.
– origin C16: from unaware + -s3.
'unaware' also found in these Oxford entries:

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