Presumed without analysis.
Self-evident, intuitively obvious.
Based on hypothesis and theory rather than experiment or empirical evidence.
Developed entirely from scratch, without deriving it from existing languages.
In a way based on theoretical deduction rather than empirical observation.
Arousing doubt; questionable; open to suspicion.
In disbelief; wavering, uncertain, or hesitating in opinion; inclined to doubt; undecided.
Generally considered imprecise or wrong, but not totally unplayable.