Yes, it can be (an unexpected visitor, unexpected costs). The word unexpected is the antonym of 'expected' which is the past tense and past participle of the verb 'to expect' and can be used as an adjective. Unexpected means not expected, not anticipated.
is crime unpredictable if yes than why is unpredictable
The future remains unpredictable.
The antonym of the word 'synonym' is 'antonym'.
An example is "This weather is unpredictable".
The root word of unpredictable is "predict."
The prefix "un-" in unpredictable means "not" or "lacking." So, unpredictable means not able to be predicted or anticipated.
An antonym means "opposite". So an antonym for the word synonym is antonym.
Bull mastiff's are unpredictable.
Life is unpredictable
Life is unpredictable
caprice is an Italian name meaning unpredictable.