List of penetrating synonyms and penetrating related words.
Siberian, absorbing, acerb, acerbate, acerbic, acid, acidic, acidulent, acidulous, acrid, acrimonious, acute, algid, apperceptive, appercipient, arctic, argute, asperous, astringent, astute, below zero, biting, bitter, bitterly cold, bleak, boreal, brisk, brumal, caustic, clear-cut, clever, cogent, cold, cold as charity, cold as death, cold as ice, cold as marble, corroding, corrosive, creaky, crisp, cutting, deafening, deep, deep-felt, deepgoing, discerning, discriminating, double-edged, driving, ear-piercing, ear-splitting, edged, effective, escharotic, farseeing, farsighted, fierce, forceful, forcible, foreseeing, foresighted, forethoughted, forethoughtful, freezing, freezing cold, frigid, gelid, glacial, gutsy, harsh, heartfelt, hibernal, hiemal, homefelt, howling, hyperborean, ice-cold, ice-encrusted, icelike, icy, imperative, impressive, incisive, inclement, indelible, ingoing, intelligent, intense, irritating, keen, keening, longheaded, longsighted, loud, mordacious, mordant, nervous, nipping, nippy, nose-piercing, nose-tickling, numbing, perceptive, percipient, perspicacious, perspicuous, pervading, pervasive, piercing, pinching, piping, piquant, poignant, powerful, profound, provident, punchy, pungent, quick, quick-witted, raw, reedy, reeking, rigorous, rough, sagacious, scathing, scorching, screaky, screeching, screechy, searching, sensational, sensitive, severe, sharp, sharp-sighted, sharp-witted, shrieking, shrieky, shrill, sinewed, sinewy, slashing, sleety, slushy, smart, snappy, sour, squeaking, squeaky, stabbing, stinging, stone-cold, strident, striking, stringent, strong, strong-scented, strong-smelling, subzero, suffocating, supercooled, tart, telling, thin, thundering, trenchant, ululant, understanding, vehement, vigorous, violent, virulent, vital, vitriolic, wailing, whining, whistling, winterbound, winterlike, wintery, wintry, withering