natural synonyms

open simple direct frank plain innocent straightforward unaffected sincere trusting rustic impulsive forthright unsuspecting candid childlike unsophisticated unpretentious ingenuous credulous artless unpolished homey unstudied unfeigned

general common expected normal regular ordinary usual reasonable familiar constant typical routine consistent characteristic universal uniform logical anticipated probable spontaneous accustomed predictable prevailing customary prevalent involuntary uncontrolled habitual uncontrollable wonted matter-of-course