Ambiguity

Drawing of the back an anthropomorphic caterpillar, seated on a toadstool amid grass and flowers, blowing smoke from a hookah; a blonde girl in an old-fashioned frock is standing on tiptoe to peer at the caterpillar over the toadstool's edge — Sir John Tenniel's illustration of the Caterpillar for Lewis Carroll's *Alice's Adventures in Wonderland* is noted for its ambiguous central figure, whose head can be viewed as either a man's face with a pointed nose and chin smoking a pipe or as the end of an actual caterpillar, with the first two right "true" legs visible (1865).

Ambiguity is a state in which the meaning of a phrase, statement, situation, or resolution is not explicitly defined, making for several plausible interpretations. It arises when available information lacks sufficient context or a shared frame, so people cannot reliably determine what the problem is, what matters, what causes what, or what solution would count as correct. As a result, interpretation depends heavily on prior experience, assumptions, and imagination.

An outcome of ambiguity is uncertainty, but uncertainty itself refers to a state in which outcomes or meanings are known but their likelihood, stability, or implications cannot be reliably assessed. Ambiguity is not simply the absence of information. It is the lack of meaning and direction caused by insufficient context and unclear framing, which obstructs the ability to determine what counts as a valid interpretation or resolution. The prefix ambi- reflects the idea of “two” or “multiple,” as in multiple possible meanings.

The concept of ambiguity is generally contrasted with vagueness. In ambiguity, multiple distinct interpretations compete because the frame of meaning is unclear and is shaped by personal history and mental models. With vagueness, in contrast, the general interpretation is often understood, but the boundaries are fuzzy, so it is difficult to specify the meaning at the desired level of precision.