不变

constant / unvarying / (math.) invariant

no; not so / (bound form) not; un-

to change / to become different / to transform / to vary / rebellion

nothing much changes (idiom); always the same / stuck in a rut

(idiom) immutable; impervious to change; set in stone

(idiom) to deal with varying circumstances by adhering to a basic principle

constant capital

invariant quantity / invariant (math.)

unchanging since times immemorial (idiom) / unalterable / unvarying / monotonous

fixed price / constant price

invariably