constant Pronunciation: /ˈkɑːnstənt; ˈkɒnstənt/Translate constant | into French | into German | into Italian Spanish translation of constantadj 1 (continual) [pain/complaints] constante 2 (unchanging) [temperature/speed] constante 3 (loyal) (liter) fiel, lealconstant in other Oxford dictionaries Definition of constant in the British & World English dictionary Definition of constant in the US English dictionary