konciza

Short is not the same as concise. Mallonga at rank 449 measures length and passes no judgement: a mallonga letero may be short because there was nothing to say. Konciza is a compliment about craft - it says a lot was said in a little, that the cutting was done well. A telegram is mallonga. Tacitus is konciza. If you mean the text is brief, say mallonga; if you mean the writer earned the brevity, say konciza.

Its twin in this band. Konkreta at 2,781 came in thirteen ranks earlier, and the pair belongs together: both are the vocabulary of academic and editorial Esperanto, the words a supervisor writes in the margin. Estu konkreta means stop generalising. Estu konciza means stop padding. Whole chapters of Esperanto's own style writing - the movement has argued about prose style since the 1900s - run on those two adjectives.

The family is regular. Koncize is the adverb, konciziĝi is to become concise, koncizeco is concision as a quality, and mallongigi is what you actually do to a text to get there. Esperanto has no verb meaning to be concise; you are konciza, or you are not.