Definition of monotheistic in English:
 monotheistic
adjective mɒnə(ʊ)ˌθiːˈɪstɪkˌmɑnəθiˈɪstɪk
- Relating to or characterized by the belief that there is only one God. -  Western monotheistic traditions 
-  Example sentencesExamples -  A truly monotheistic system requires us to recognize the world as it is, and recognize our power of choice in this world.
-  Alone among the great monotheistic faiths, Catholicism is a lover rather than a breaker of icons.
-  It was first thought that the Olmecs were monotheistic, but it is now known that they were polytheists.
-  From ancient times to the present, various forms of monotheistic faith have repeatedly unleashed tremendous energies for both good and ill.
-  This monotheistic Native American religion was strongly based on a Christian model, with some ancestral ceremonies included.
-  The great museums of the world bear witness to the extensive impact of monotheistic spirituality upon human civilization.
-  They stressed that their religion was monotheistic and that it possessed the formal features of established religions: a dogma, a distinct ritual, a priestly hierarchy.
-  Islam by contrast did present such an immediate monotheistic God who superintended all human endeavors.
-  The Bible teaches that mankind was originally monotheistic.
-  The final development in Indian religious thinking, in a time just before Buddhism, was that of monotheistic belief.
 
Derivatives
  
adverb -ˈɪstɪk(ə)li
-  Man was subject to all the gods, but Zeus reigned supreme over gods and men, although not quite monotheistically. 
-  Example sentencesExamples -  By being many, these Goddesses avoid a monotheistically chauvinistic view of the feminine.
-  Within a piece of relatively popular literature, an author could speak of supernatural causes both monotheistically and polytheistically.
-  Aten was the god of the solar disk who was monotheistically worshipped by Akhenaten, a religious theory which only lasted for one reign.
-  Wallace saw Chinese religion as monotheistically organized around the figure of Confucius.
 
Definition of monotheistic in US English:
 monotheistic
adjectiveˌmänəTHēˈistikˌmɑnəθiˈɪstɪk
- Relating to or characterized by the belief that there is only one God. -  Western monotheistic traditions 
-  Example sentencesExamples -  This monotheistic Native American religion was strongly based on a Christian model, with some ancestral ceremonies included.
-  Islam by contrast did present such an immediate monotheistic God who superintended all human endeavors.
-  Alone among the great monotheistic faiths, Catholicism is a lover rather than a breaker of icons.
-  They stressed that their religion was monotheistic and that it possessed the formal features of established religions: a dogma, a distinct ritual, a priestly hierarchy.
-  A truly monotheistic system requires us to recognize the world as it is, and recognize our power of choice in this world.
-  The great museums of the world bear witness to the extensive impact of monotheistic spirituality upon human civilization.
-  The final development in Indian religious thinking, in a time just before Buddhism, was that of monotheistic belief.
-  The Bible teaches that mankind was originally monotheistic.
-  It was first thought that the Olmecs were monotheistic, but it is now known that they were polytheists.
-  From ancient times to the present, various forms of monotheistic faith have repeatedly unleashed tremendous energies for both good and ill.