Preventative

Preventative medicine is very important.

We need to take preventative measures.

I'd recommend preventative surgery.

I'm on preventative medication for tuberculosis.

Logan said that traditional preventative measures against sunburn, such as wearing long clothes, hats and sunglasses, have not been enough.

He noted that a serious global recession was very likely and that workers could be financially devastated, necessitating dramatic preventative action.

1920, Lillien Jane Martin, Mental hygiene: two years' experience of a clinical psychologist, Warwick &York (1920), p. 78, "That part of mental hygiene which has a prophylactic character falls into two classes, group preventative mental hygiene […]"

1968, G. Anthony Wedge, N. A. P.: New American Party, Geddes Press Printers (1968), p. 155, "Preventative defense comes in two flavors […]"

2006, Robert Thompson and Barbara Fritchman Thompson, Repairing & Upgrading Your PC, O'Reilly (2006), p. 70, "The goals of preventative maintenance are to reduce the likelihood of hardware failures, […]"

The seeds and roots of the water lily are likewise considered a preventative against lechery.