pat2
adjective
adverb
his reply came rather pat:
opportunely, conveniently, advantageously, at just/exactly the right moment, expediently;
usefully, beneficially, favourably, profitably, appropriately, fittingly, suitably, aptly, timely, auspiciously, luckily, happily, providentially, felicitously, seasonably, propitiously.
pat (2) Oxford Dictionary of English