alertness and prudence in a hazardous situation; care; wariness

Landslides aheadproceed with caution.

a warning against danger or evil; anything serving as a warning

By way of caution, he told me the difficulties I would face.

Informal . a person or thing that astonishes or causes mild apprehension

She's a caution. The way he challenges your remarks is a caution.

to give warning to; advise or urge to take heed.

to warn or advise

The newspapers caution against overoptimism.

noun

heedlessness , imprudence , indiscretion , neglect , negligence , thoughtlessness

noun

attention , canniness , care , circumspection , deliberation , discreetness , discretion , fabian policy , foresight , forethought , heed , heedfulness , providence , prudence , vigilance , watchfulness , admonition , advice , bug in one’s ear , caveat , commonition , counsel , forewarning , hint , injunction , monition , notice , omen , premonition , sign , tip * , tip-off , calculation , carefulness , chariness , gingerliness , precaution , wariness , mindfulness , regard , forehandedness , foresightedness , forethoughtfulness , admonishment , alarm , alert , cautiousness , concern , cunctation , observance , portent , warning

verb

admonish , alert , exhort , flag , forewarn , give the high sign , give the lowdown on , pull one’s coat , put one wise , tip * , tip off , urge , wave a red flag , wise one up , alarm , admonition , advice , advise , anxiety , apprise , attention , awaken , calculation , care , caveat , counsel , diligence , discretion , dissuade , forecast , heed , hint , notify , providence , prudence , reservation , sermonize , signal , vigilance , wariness , warn , warning , watchfulness