heretofore unknown
Frequency: 3.51.2 per million words
Not known before this time; formal and especially used in American English.
Categories:
Examples (10)
- The archaeological dig unearthed a civilization heretofore unknown to historians.
- Advances in science have revealed phenomena heretofore unknown to mankind.
- She introduced a theory heretofore unknown in the field of quantum physics.
- The artist employed techniques heretofore unknown in contemporary art.
- A rare disease, heretofore unknown to medical science, has emerged.
- The company developed a product with capabilities heretofore unknown in the market.
- This region harbors species heretofore unknown to botanists.
- He achieved a level of success heretofore unknown in his career.
- The explorer discovered a land heretofore unknown to cartographers.
- They uncovered documents that revealed truths heretofore unknown to the public.