opportunist

To others he was an opportunist, a rockstar and Robin Hood character.

"It was back to his real love. He is not an opportunist, he just wants to improve the club."

After joining the SNP, and news emerged about previous time she had spent with Scottish Labour, she responded: “I am not an opportunist, I want to work with whoever will deliver for Scotland.”

But perhaps most importantly, to keep rivals and opportunists at bay.

The thing that's important to understand about Putin is he's an opportunist and he's a tactician, not a strategist.