(not tenable; e.g., assertion), rationi adversus (i. e., against reason or good sense): vanus (empty, unsubstantial; opposed to verus): futilis (frivolous): fictus: commenticius (invented, made up). (The words are found in this connection and order.) fictus (or futilis) et commenticius; also by circumlocution, qui (quae, quod) sine causa fit, etc., aliquid, cui nihil subest (which has no foundation of truth). A confidence which assuredly cannot be utterly groundless, fiducia quae non de nihilo profecto concepta est (Liv., 39, 29).