Taken in advance to protect against possible danger or failure:
— Gave precautionary advice.
— I would take precautionary steps to keep him away.

synoniem: precautional.

Roget 673: preparing etc. v.; in preparation, in course of preparation, in agitation, in embryo, in hand, in train; afoot, afloat; on foot, on the stocks, on the anvil; under consideration etc. (plan) 626; brewing, batching, forthcoming, brooding; in store for, in reserve.    precautionary, provident; preparative, preparatory; provisional, inchoate, under revision; preliminary etc. (precedent) 62.    prepared etc. v.; in readiness; ready, ready to one's band, ready made, ready cut and dried: made to one's hand, handy, on the table; in gear; in working order, in working gear; snug; in practice.    ripe, mature, mellow; pukka^†; practiced etc. (skilled) 698; labored, elaborate, highly-wrought, smelling of the lamp, worked up.    in full feather, in best bib and tucker; in harness, at harness; in the saddle, in arms, in battle array, in war paint; up in arms; armed at all points, armed to the teeth, armed cap a pie; sword in hand; booted and spurred.    in utrumque paratus [Lat.], semper paratus [Lat.]; on the alert etc. (vigilant) 459; at one's post.    ... meer laten zien