Freak

anormal

(oddball, especially in physiology)

caprice

(sudden causeless change or turn of the mind)

déforme

(person whose physique has grown far beyond the normal limits of muscular development)

fana

(person who has an obsession or extreme knowledge of something)

fanatique

(person who has an obsession or extreme knowledge of something)

fou

(person who has an obsession or extreme knowledge of something)

monstre

(oddball, especially in physiology)

mordu

(person who has an obsession or extreme knowledge of something)

original

(nonconformist, especially in appearance, sexual orientation, gender identity, or business practices)

phénomène

(oddball, especially in physiology)