Leaving a specified track; deviating from a specified rule or principle. Of remarks, discussions, etc.: Wandering from the subject, irrelevant. Obs…

Not orthodox; contrary to what is usual, traditional, or accepted; unconventional, unusual.

Deviating markedly from the ordinary or natural type, exceptional, irregular; pathological.

characterized by aberration; aberrant, abnormal, distorted.

transferred and figurative. Following different routes, lines of action, or of thought; deviating from each other or from a standard or normal…

Characterized by independence of or departure from what is usual or traditional; progressive, unorthodox, or innovative in outlook, conception…

Not standard; not conforming to the usual or accepted rules or measurements.

That is not usual or habitual; that does not occur regularly; that does not follow the usual rule or pattern; nonstandard.

gen. Not regulation; that does not conform to a standard or rule.

That does not conform.

Of or relating to activities that represent an unorthodox style or approach; of a kind purported to be preferable to or as acceptable as those in…

That treats a subject from a different or unconventional angle; unorthodox, ‘offbeat’.

= alternative, adj. 5.

Of an aspect of culture, the arts, etc.: unorthodox; removed from the mainstream; having a limited following.

Alternative; spec. denoting a version of some cultural phenomenon (originally and esp. music) that is regarded as outside the mainstream of its…