keep eyes open (verb) beware: be careful
Sinonime: acrimonious,
acute, barbed,
biting, bitter,
caustic,
cutting,
exciting, hot,
incisive,
keen, mordant,
penetrating, peppery,
piercing, poignant,
pointed,
provocative, racy, salt, salty,
sarcastic, scathing, snappy, spicy,
stimulating,
stringent,
telling,
trenchant, zesty
Antonime: dull,
mild