Non-standard

There are many people in the world studying English, so English people are used to learners' non-standard accents, their grammatical errors and so on.

Source: tatoeba (888448)

It's either too trite to merit that level of innovation or awkward because the non-standard terminology gets in the way of the meaning.

Source: tatoeba (1527346)

The use of non-standard English does not help to promote English in international communications; well, we can always fall back on Esperanto.

Source: tatoeba (1563732)

I guess that a few non-standard logograms might not yet be in Unicode, which is like a museum.

Source: tatoeba (2055646)