gasta, a3. 1. Fast; quick, rapid. Siúl ~, fast walk. Reathaí ~, fast runner. Tá sé ~ ar a chois, he is fast on his feet. Chomh ~ le cú, as fast as a greyhound. Rud a dhéanamh go ~, to do sth. fast. Is ~ a labhair sé, he spoke very fast; he was quick to speak. Tháinig an cith sin go ~, that was a quick shower. S.a. galar 1. 2. Smart; quick, clever. ~ sa cheann, talented. ~ ag foghlaim, ag an léann, quick to learn. Tá sé ~ ar an scoil, he is clever at school. Diúlach ~, smart fellow. Tá sé róghasta agat, he is too smart for you. 3. Neat, tidy.