Electronegativity: Ability of an atom to attract a shared pair of electrons in its combined state. Non-metals are more electronegative.
Electropositivity: Ability of an atom to withdraw a shared pair of electrons in its combined state. Metals are more electropositive.
More electronegative an atom is the less electropositive it is and vice-versa. Also, these values depend on the atom to which it gets bonded with.