Having no basement; constructed or designed without a basement level.
From basement (base + -ment, Old English suffix forming nouns) + -less (suffix meaning without). This descriptor emerged in 19th-century architecture and construction vocabulary.
Basementless homes are actually smarter in wet climates since basements flood easily—but they're also less common in cold places because basements help with insulation, showing how architecture follows geography.
Complete word intelligence in one call. Free tier — 50 lookups/day.