| swell(great, excellent, superb, super, groovy) |
| terrific(great, excellent, superb, super, groovy) |
| unbelievable(great, excellent, superb, super, groovy) |
| uncalculated(adjective, secret, unexpected, surprising, unanticipated) |
| undesigned(adjective, intention, unplanned, unintentional, accidental) |
| unheralded |
| unimaginable(great, excellent, superb, super, groovy) |
| unintended(adjective, chance, intention, unplanned, unintentional) |
| unsought |
| unthinkable(great, excellent, superb, super, groovy) |
| welcome(great, excellent, superb, super, groovy) |
| winning(great, excellent, superb, super, groovy) |
| arbitrary |
| exceptional(adjective, inexpectation) |
| fluky(adjective, chance, lucky, liable, unplanned) |
| freak |
| headlong(violent, fast, quick, abrupt, rapid) |
| incalculable(adjective, limitless, countless) |
| lucky |
| never thought of(verb, expression, phrasal verb, intention) |