Without a brood; lacking offspring or eggs being incubated, or not tending toward brooding thoughts.
From 'brood' plus the negating suffix -less, which means 'without' or 'lacking.' This productive suffix in English creates adjectives indicating absence of something.
Some bird species naturally remain 'broodless' because they've evolved different reproductive strategies—some birds create communities where only certain individuals breed while others help care for chicks, a fascinating alternative family structure.
Complete word intelligence in one call. Free tier — 50 lookups/day.