| compulsory(adjective, violent, significant, essential, basic) |
| driving(verb, adjective, energetic, powerful, lively) |
| forcible(adjective, clear, strong, direct, energetic) |
| good(sound, reasonable, rational) |
| gripping |
| important(adjective, serious, essential, critical, vital) |
| imposing(verb, imperious) |
| obligating(verb, requiring) |
| valid(adjective, clear, direct, sound, right) |
| vital(adjective, energetic, important, lively, active) |
| critical(adjective, important, serious, essential, vital) |
| dynamic(adjective, strong, energetic, violent, powerful) |
| exigent(adjective, important, significant, serious, essential) |
| indispensable(adjective, important, significant, serious, essential) |
| interesting(adjective, moving, pleasant, lively, attractive) |
| irresistible(adjective, strong, attractive, charming, forceful) |
| mandatory(adjective, significant, essential, basic, vital) |
| motivating |
| pushing(verb, adjective, propelling) |
| significant(adjective, clear, important, meaning, essential) |