Federal, general

bearable, cerebral, chemical, clerical, credible, decimal, edible, enviable, equable, ethical, festival, genital, legible, medical, metrical, parable, pedestal, preferable, Reginald, seminal, sensible, sensual, sentinel, several, skeletal, spherical, temporal, tenable, tentacles, terrible, ventricle, vesicles

accessible, amenable, chimerical, commendable, confessional, congenital, Congressional, contemptible, conventional, defensible, dependable, detestable, dimensional, ephemeral, execrable, heretical, hysterical, identical, illegible, impeccable, incredible, indelible, ineffable, insensible, intentional, intestinal, lamentable, nonsensical, numerical, ostensible, poetical, polemical, presentable, professional, regrettable, symmetrical, unbearable, unenviable, unquenchable, untenable

academical, alphabetical, antithetical, arithmetical, asymmetrical, biochemical, comprehensible, ecumenical, evangelical, geometrical, hypothetical, inaccessible, incontestable, indefensible, indigestible, indispensable, inexpressible, irrepressible, reprehensible, theoretical, unconventional, unforgettable, unintentional

gastrointestinal, incomprehensible, infinitesimal