A leopard can't change its spots

a leopard can't change its spots

One will stay true to one's nature, even if one pretends or claims otherwise. After our breakup, he came crawling back, trying to convince me that he'd changed, but I know that a leopard can't change its spots.
See also: change, leopard, spot

A leopard can't/doesn't change its spots.

something that you say which means that a person's character, especially if it is bad, will not change, even if they pretend it has I doubt very much that marriage will change Chris for the better. A leopard doesn't change its spots.
See also: change, leopard, spot
References in periodicals archive ?
Their relationship has gone the distance, but, in true Shameless style, prostitute Kelly proved a leopard can't change its spots when she slept with Paddy in exchange for money - when he failed to pull on a night out with his sons a few week's ago.
THEY say a leopard can't change its spots - it seems the same goes for the increasingly bonkers Britney Spears.
With the IRA also withdrawing its offer to put weapons beyond use, it just shows that a leopard can't change its spots and the provos will always return to the bullet and the bomb.
THEY say a leopard can't change its spots and French designer Thierry Mugler showed he is no different.