magnetic — of or relating to a magnet or magnetism.
pathetic — causing or evoking pity, sympathetic sadness, sorrow, etc.; pitiful; pitiable: a pathetic letter; a pathetic sight.
phonetic — Also, phonetical. of or relating to speech sounds, their production, or their transcription in written symbols.
poetic — possessing the qualities or charm of poetry: poetic descriptions of nature.
prophetic — of or relating to a prophet: prophetic inspiration.
prosthetic — of or relating to an artificial body part or prosthesis: He was fitted for a prosthetic arm.
synthetic — of, pertaining to, proceeding by, or involving synthesis (opposed to analytic).
Four-or-more syllable rhymes
alphabetic — in the order of the letters of the alphabet: alphabetical arrangement.
anesthetic — relating to, with, or characterized by anesthesia
apathetic — If you describe someone as apathetic, you are criticizing them because they do not seem to be interested in or enthusiastic about doing anything.
arithmetic — Arithmetic is the part of mathematics that is concerned with the addition, subtraction, multiplication, and division of numbers.
apologetic — If you are apologetic, you show or say that you are sorry for causing trouble for someone, for hurting them, or for disappointing them.
diamagnetic — of, exhibiting, or concerned with diamagnetism
ferromagnetic — noting or pertaining to a substance, as iron, that below a certain temperature, the Curie point, can possess magnetization in the absence of an external magnetic field; noting or pertaining to a substance in which the magnetic moments of the atoms are aligned.
hyperkinetic — Pathology. an abnormal amount of uncontrolled muscular action; spasm.
paramagnetic — a body or substance that, placed in a magnetic field, possesses magnetization in direct proportion to the field strength; a substance in which the magnetic moments of the atoms are not aligned.
peripatetic — walking or traveling about; itinerant.
unsympathetic — characterized by, proceeding from, exhibiting, or feeling sympathy; sympathizing; compassionate: a sympathetic listener.
Four-or-more syllable rhymes
electromagnetic — Of or relating to the interrelation of electric currents or fields and magnetic fields.
parasympathetic — pertaining to that part of the autonomic nervous system consisting of nerves and ganglia that arise from the cranial and sacral regions and function in opposition to the sympathetic system, as in inhibiting heartbeat or contracting the pupil of the eye.
parthenogenetic — development of an egg without fertilization.
unapologetic — containing an apology or excuse for a fault, failure, insult, injury, etc.: An apologetic letter to his creditors explained the delay.
Four-or-more syllable rhymes
general anesthetic — (medicine) An anesthetic (anesthetic substance) that causes loss of sensation to the whole body.