Reciprocal (adjective) باہمی، فریق مخالف، متوازی

given, felt, or done in return.
Example: “she was hoping for some reciprocal comment or gesture”
Viable (adjective) وہ چیز جو ممکن ہو، قابل عمل، قابل تعمیل

capable of working successfully; feasible.
Example: “the proposed investment was economically viable”