spec·u·la·tive 
/ˈspɛkjələtɪv/ adjective
/ˈspɛkjələtɪv/ adjective 1 a : based on guesses or ideas about what might happen or be true rather than on facts
▪ His conclusions are highly/purely speculative.
b : tending to think about what might happen or be true : tending to speculate
▪ a writer with a speculative mind
c : showing curiosity or uncertainty
▪ She gave him a speculative glance. [=she looked at him in a way that showed she was thinking/wondering about him] 2 : involving financial risk : of or relating to financial activity that could result in either a large profit or a large loss
▪ a speculative boom in housing construction ▪ speculative deals
▪ His conclusions are highly/purely speculative.
b : tending to think about what might happen or be true : tending to speculate
▪ a writer with a speculative mind
c : showing curiosity or uncertainty
▪ She gave him a speculative glance. [=she looked at him in a way that showed she was thinking/wondering about him]
▪ a speculative boom in housing construction ▪ speculative deals
— spec·u·la·tive·ly adverb
▪ The question can only be answered speculatively. ▪ She eyed him speculatively.
▪ The question can only be answered speculatively. ▪ She eyed him speculatively.
