entspanntem
Entspanntem is a grammatically inflected form of the German adjective entspannt, meaning relaxed. It is the dative singular form used when the noun it describes is masculine or neuter and the sentence does not include a definite article or other determiner that would trigger a weaker ending. In practice, entspanntem appears in phrases governed by dative prepositions and without a determiner, such as mit entspanntem Blick or in entspanntem Zustand.
Common usage examples illustrate the sense. Mit entspanntem Blick conveys a relaxed or calm gaze. In entspanntem
Morphology and usage notes. entspanntem is the strong-declension ending for dative singular masculine or neuter nouns
See also. The related forms include entspannt (strong base form for masculine/neuter nominative or plural contexts)