Both Uses of
formidable
in
Anna Karenina
- Galtsin, a friend of Vronsky's and one of his more formidable rivals, was moving round a bay horse that would not let him mount.†
Part 2 *formidable = intimidating or impressive
- He did not like him, and regarded him now as his most formidable rival.†
Part 2
Definition:
intimidating or impressive -- arousing fear or admiration due to impressiveness or challenge