| endure through(verb, expression, phrasal verb) |
| fibrous(adjective, strong, hard, solid, stiff) |
| fighter |
| fit(adjective, strong, hard, solid, stiff) |
| flinty(adjective, strong, hard, solid, stiff) |
| foiling(watchful, opposing, defending, protective, protecting) |
| forebearance(noun, strength, ability, resolution, capacity) |
| forestalling(watchful, opposing, defending, protective, protecting) |
| fortitude(noun, strength, ability, resolution, capacity) |
| frustrating(watchful, opposing, defending, protective, protecting) |
| grit(noun, strength, ability, resolution, capacity) |
| guardian |
| guarding(alert, watchful, opposing, defending, protective) |
| guts(noun, strength, ability, resolution, capacity) |
| gutsiness(noun, strength, ability, resolution, capacity) |
| hard-bitten(adjective, strong, hard, solid, stiff) |
| hard as nails(expression, adjective, idiom, strong, hard) |
| heart(noun, strength, ability, resolution, capacity) |
| hold |
| holding up(noun, expression, strength, ability, resolution) |