Unwholesome

The problem of interstellar travel was so enthralling that it sometimes became an obsession even to a fairly well-developed Utopian world. This could only occur if in the constitution of that world there was something unwholesome, some secret and unfulfilled hunger impelling the beings. The race might then become travel-mad.

Much of the work is on the emotions and other dimensions of the human being—spiritual, physical, and intellectual—that can be inhibited by unwholesome attitudes or repressive social conventions.

unwholesome air, or food

Caliban: As wicked dewe, as ere my mother bruſh'd / With Rauens feather from vnwholeſome Fen / Drop on you both : A Southweſt blow on yee, / And bliſter you all ore.

Alas! he mastered not his destiny: I have said before, his ashes are in yonder urn. A few unwholesome dews on a summer night were mightier than all his science.

There was something indefinably unwholesome about him. Something lean and snakelike.