at an angle of 90 degrees (to another line or surface); upright

at right angles to

of the side of the body etc that is towards the east when the front is towards the north; having conservative opinions; (of behaviour etc) morally good, legal, just; (of facts, reasons, time etc) correct, true

fair, just

placed vertically (at an angle of 90 degrees to the ground); honourable; straightforward in behaviour

straight-up