/
ˈadvəːs/
adj.
preventing success or development; unfavourable.
Derivative
Usage
A common error is to use adverse instead of averse, as in I am not adverse to helping out, rather than the correct form I am not averse to helping out.
Etymology
ME: from OFr. advers, from L. adversus ‘against, opposite’, from advertere, from ad- ‘to’ + vertere ‘to turn’.