This is the 13174th most frequent German word.
antiamerikanische
"Antiamerikanische" means "anti-American."
In this sentence, 'antiamerikanische' is used as an adjective to describe 'Parolen' (slogans), indicating their critical stance towards America.
Die Demonstranten zeigten Schilder mit antiamerikanischen Parolen.
The demonstrators displayed signs with anti-American slogans.
Here, 'antiamerikanischen' modifies 'Haltung' (attitude), thus qualifying a particular perspective.
Ihre Meinungen schienen stark von einer antiamerikanischen Haltung geprägt zu sein.
Their opinions seemed to be strongly influenced by an anti-American attitude.
In this example, 'antiamerikanischen' describes 'Ansichten' (views), denoting the nature of the author's expressions.