adj. 25B6; adjective
a penetrating wind : PIERCING, cutting, biting, stinging, keen, sharp, harsh, raw, freezing, chill, wintry, cold.
a penetrating voice : SHRILL, strident, piercing, carrying, loud, high, high-pitched, piping, ear-splitting, screechy, intrusive.
a penetrating smell : PUNGENT, pervasive, strong, powerful, sharp, acrid; heady, aromatic.
her penetrating gaze : OBSERVANT, searching, intent, alert, shrewd, perceptive, probing, piercing, sharp, keen.
a penetrating analysis : PERCEPTIVE, insightful, keen, sharp, sharp-witted, intelligent, clever, smart, incisive, piercing, razor-edged, trenchant, astute, shrewd, clear, acute, percipient, perspicacious, discerning, sensitive, thoughtful, deep, profound.
mild, soft.