siblingless

Without any siblings

Siblingless describes someone who has no brothers or sisters, whether by birth or through later circumstances.

It functions as a more clinical or formal alternative to "only child," though unlike that phrase, siblingless can also apply to someone who once had siblings but no longer does.

Growing up siblingless, she invented elaborate games to entertain herself.

onlychild

only child

Person without siblings

singleton · nuclear family · family planning · birth control · one and done

solitude

lonely

Wanting companionship

companionless · unaccompanied · secluded · introverted · self-contained · reclusive · hermitic · friendless · detached · unsocialized

independence

self-reliant

Able to provide independently

self-directed · resourceful · self-starter · self-assured · mature · precocious · self-guided · self-motivated · inner-directed · imaginative play

inheritance

sole heir

Single estate recipient

Opposites
number of siblings

siblinglessmiddle child

Sibling between oldest and youngest

baby of the family

Family

sibling, siblings, siblinghood

Familiarity
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Profile
Known to kids · Used worldwide · Timeless · Everyday, not technical · Rated G