speculate

/ˈspɛkjəˌɫeɪt/

to form a theory without firm evidence

speculate in a sentence

“Experts speculate about the causes of the crash.”

Latin speculatus observed (from specula watchtower, from specere to look)

Related Words

hypothesize

to put forward as a hypothesis

skeptical

not easily convinced; having doubts

incredulous

unwilling or unable to believe something

dubious

hesitating or doubting; not to be relied upon

agnostic

neither believing nor disbelieving; uncertain

ambivalent

having mixed feelings or contradictory ideas