1.
Someone who is ~ to new ideas or suggestions is prepared to consider them or accept them.
The voters had seemed ~ to his ideas...
ADJ: oft ADJ to n
~ness
There was less ~ness to liberalism in some areas.
N-UNCOUNT
2.
If someone who is ill is ~ to treatment, they start to get better when they are given treatment.
...those patients who are not ~ to treatment.
ADJ: v-link ADJ to n