| capable(adjective, knowledge, experience, skill, expert) |
| certified(adjective, test, expert, reliable) |
| clutch(adjective, duty, reliable, effective, responsible) |
| conusant(adjective, knowledge, experience, skill, expert) |
| crashproof(adjective, duty, reliable, effective, responsible) |
| dependable(adjective, duty, reliable, effective, responsible) |
| durable(adjective, duty, reliable, effective, responsible) |
| effective(adjective, duty, reliable, responsible) |
| elect(adjective, best, better, reliable, responsible) |
| enduring(adjective, duty, reliable, effective, responsible) |
| erudite(adjective, knowledge, experience, skill, expert) |
| examined(adjective, test, expert, reliable) |
| experienced(adjective, knowledge, experience, skill, expert) |
| failure-safe(adjective, duty, reliable, effective, responsible) |
| familiar with(adjective, knowledge, experience, skill, expert) |
| firm(adjective, duty, reliable, effective, responsible) |
| fly(adjective, knowledge, experience, skill, expert) |
| foolproof(adjective, duty, reliable, effective, responsible) |
| free from danger(expression, duty, reliable, effective) |
| free from risk(expression, duty, reliable, effective) |