'Conjectural' definitions:

Definition of 'conjectural'

From: WordNet
adjective
Based primarily on surmise rather than adequate evidence; "theories about the extinction of dinosaurs are still highly conjectural"; "the supposed reason for his absence"; "suppositious reconstructions of dead languages"; "hypothetical situation" [syn: conjectural, divinatory, hypothetical, hypothetic, supposed, suppositional, suppositious, supposititious]

Definition of 'Conjectural'

From: GCIDE
  • Conjectural \Con*jec"tur*al\, 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]