Speculative (adjective)

  1. Involving, based on, or constituting speculation.
  2. Not having been proven or confirmed; hypothetical.

Origin:

Late middle english: from old french speculatif, -ive or medieval latin speculativus, from latin speculari "consider, gaze at".

Examples:

  1. He made a speculative investment in the stock market.
  2. The theory is still speculative and needs more research.
  3. The book is a work of speculative fiction.
  4. The company is engaged in speculative building.
  5. He made a speculative proposal for a new project.
Some random words: undimmed, sprinkler, scoutmaster