1. completely neat and clean (Freq. 1) - the apartment was immaculate - in her immaculate white uniform - a spick-and-span kitchen - their spic red-visored caps • Syn: speckless, spick-and-span, spic-and-span, spic, spick, spotless • Similar to: clean • Derivationally related forms: spotlessness (for: spotless), immaculateness 2. free from stain or blemish • Syn: undefiled • Similar to: pure 3. without fault or error - faultless logic - speaks impeccable French - timing and technique were immaculate - an immaculate record • Syn: faultless, impeccable • Similar to: perfect • Derivationally related forms: impeccability (for: impeccable)