| scattered(adjective, regularly, fewness) |
| strange(adjective, excellent, extraordinary, unusual, exceptional) |
| casual(adjective, chance, irregular, erratic, random) |
| extraordinary(adjective, excellent, unusual, strange, exceptional) |
| insufficient(adjective, weak, slight, poor, inferior) |
| meager(adjective, slight, poor, short, inadequate) |
| thin(slight, poor, spare, short, deficient) |
| unfrequent(adjective, infrequency) |
| unprecedented(adjective, excellent, unusual, special, brilliant) |
| atypical(adjective, excellent, extraordinary, strange, special) |
| isolated(adjective, regularly) |
| meagre |
| peculiar(adjective, excellent, unusual, special, brilliant) |
| remarkable(adjective, excellent, extraordinary, unusual, strange) |
| seldom met with(expression, adjective, idiom, inadequate, insufficient) |
| spasmodic(adjective, regular, irregular, routine, unreliable) |
| unfamiliar(adjective, unusual, special, rare, scarce) |
| unparalleled(adjective, unusual, special, rare, scarce) |
| abnormal(adjective, excellent, extraordinary, unusual, strange) |
| at different times |