constant

adjective
B2
OPAL
1
B2
happening all the time or repeatedly
دائم, مدام, پیوسته, مداوم, همیشگی
2
B2
that does not change
ثابت, پایدار, بدون تغییر, غیرمتغیر
The car was travelling at a constant speed of 50 mph.
The samples need to be stored at a constant temperature.
Crime levels remain constant.
Ross was his most constant and loyal friend.
noun
OPAL
1
a number or quantity that does not vary
ثابت, عدد ثابت, کمیت ثابت, مقدار تغییرناپذیر, عدد تغییرناپذیر
opposite variable