1.
If someone or something is ~ to a particular job, situation, or place, they do not have the right qualities or characteristics for it.
He’s totally ~ to the job...
The snow cruiser proved hopelessly ~ to Antarctic conditions.
? suited
ADJ: oft ADJ to n/-ing
2.
If two people, especially a man and a woman, are ~ to each other, they have different personalities or interests, and so are unlikely to have a successful relationship.
By the end of that first year, I knew how totally ~ we were to each other.
= incompatible
? suited
ADJ: oft ADJ to n