haphazard

Do not make such haphazard changes to the settings; instead, adjust the knobs carefully, a bit at a time.

The haphazard efforts of a few, working here and there without concert, easily spent themselves in attaining results far short of what were needed.

we assume a gas to be an assemblage of elastic spheres or molecules, flying in straight lines in all directions, with swift haphazard collisions and repulsions, like so many billiard balls.

You should never talk about your own fingers, and haphazards, to genteel people. You should only talk about agreeable subjects as I do.

I consulted my mother, who was punctiliousness itself, and decided I must go Monday, as agreed. I should be with her again on Wednesday. On such haphazards hang men's destinies sometimes.

Economics depends on fickle human nature , its changeable tastes and the varying states of culture and the haphazards of progress . Can economics be any more scientific than psychology and psychiatry?