ILLEGITIMATE Copy link • ILLEGITIMATEBastard, Vid: Add hibrida (PROP.; “mongrel;” also of a person born, e.g., of a Roman citizen and foreign woman or slave). Not legitimate, correct, etc., non legitimus (☞ Not illegitimus): *legi repugnans or contrarius. An illegitimate word, verbum insolens, durum, inusitatum, barbarum et obsoletum, etc.: an illegitimate inference, *vitiosa conclusio (after vitiose concludere, Cic.): *rationis parum apta conclusio (after Cic., ap. Quint., 9, 1, 28, rationis apta conclusio): *non or parum certa argumenti conclusio (after Quint., 5, 10, 2): to draw an illegitimate inference, vitiose concludere (opposed to recte concludere, Cic.). To make an illegitimate use of anything, aliqua re perverse abuti. Vid: ILLOGICAL.