The language was recognisable, but lacked the later British additions.

The language almost entirely lacks inflection, so that words typically have only one grammatical form.

Or he may have an inadequate understanding of how language works and lack a terminology for talking about it.

However, Rabb covers such a wide meaning, that other languages lack an equivalent of the word.

Such languages in fact often lack conjunctions as a part of speech because:

'The language lacks the proper tenses for a case like yours,' I said.

Their language lacked grammar, they had not developed any specialist tools and were unable to start a fire or fell a tree.

The Persian language is traditionally lacking a black/blue/green distinction.

The language lacked relative operators such as greater than, equal or less than.

In the final analysis, the language lacked the means for accurately describing the situation.