anxiety
anx·i·ety
 /æŋˈzajəti/  noun  ,  pl   -et·ies
  1 : fear or nervousness about what might happen
   [  noncount  ] feelings of anger and anxiety
    She suffers from chronic/acute anxiety.
    He suffers from test anxiety. [=excessive fear about taking tests]
    He's been feeling a lot of anxiety about/over his new job.
   [  count  ]
    — usually plural
    modern anxieties about terrorism
    She discussed her anxieties with her sister.
   
  2 [  singular  ] : a feeling of wanting to do something very much
   She has always had an anxiety to succeed. [=she has always been anxious to succeed]