a. [ L. conjecturalis: cf. F. conjectural. ] Dependent on conjecture; fancied; imagined; guessed at; undetermined; doubtful. [ 1913 Webster ]
And mak'st conjectural fears to come into me. Shak. [ 1913 Webster ]
A slight expense of conjectural analogy. Hugh Miller. [ 1913 Webster ]
Who or what such editor may be, must remain conjectural. Carlyle. [ 1913 Webster ]
n. A conjecturer. [ R. ] Month. rev. [ 1913 Webster ]
n. That which depends upon guess; guesswork. [ R. ] Sir T. Browne. [ 1913 Webster ]
adv. In a conjectural manner; by way of conjecture. Boyle. [ 1913 Webster ]