decorous

characterized by propriety and dignity and good taste in manners and conduct; "the tete-a-tete was decorous in the extreme"

हरियाणा राज्य सहकारी आपूर्ति संघ मर्यादित (हैफेड) (बाहरी वेबसाइट जो एक नई विंडों में खुलती हैं)

His speech is very decorous while talking in a get together.