apprehension vs outlook

apprehension and outlook both are nouns.

Word	Noun	Adjective	Verb	Adverb
apprehension	Yes	No	No	No
outlook	Yes	No	No	No

As nouns, outlook is a hypernym of apprehension; that is, outlook is a word with a broader meaning than apprehension:

Other hypernyms of apprehension include expectation, prospect.

apprehension (noun)	outlook (noun)
the act of apprehending (especially apprehending a criminal)	the act of looking out
the cognitive condition of someone who understands	belief about (or mental picture of) the future
painful expectation	a habitual or characteristic mental attitude that determines how you will interpret and respond to situations
fearful expectation or anticipation