1. A mathematical expression or limit that cannot be determined without further analysis, such as 0/0 or ∞/∞
When evaluating the limit, we encountered an undefined form that required L'Hôpital's rule to solve.
Ao avaliar o limite, encontramos uma forma indefinida que exigiu a regra de L'Hôpital para resolver.
2. In grammar or linguistics, a word form that lacks clear definition or classification
The archaic term remained an undefined form in the modern dictionary.
O termo arcaico permanecia uma forma indefinida no dicionário moderno.
3. Something that lacks a clear or specific shape, structure, or meaning
The abstract sculpture was an undefined form open to interpretation.
A escultura abstrata era uma forma indefinida aberta à interpretação.