Characterized by speculation; based on guessing, unfounded opinions, or extrapolation. / Pursued as a gamble, with possible large profits or losses; risky.

In a speculative manner.

The quality or state of being speculative.

One who speculates; an observer; a contemplator. / One who forms theories; a theorist.

(obsolete) The faculty of sight. / (obsolete) An act of looking at something; examination, observation. / The process of thinking or meditating on a subject.

(obsolete, intransitive) To think, meditate or reflect on a subject; to consider, to deliberate or cogitate.

plural of speculation

present participle of speculate

speculation

plural of speculator