letted cat ouf the bag (verb) blurt: utter suddenly
Sinonime: backward, bashful, blushing, chaste, coy, demure, diffident, discreet, humble, lowly, meek, moderate, nice, proper, prudent, quiet, reserved, resigned, reticent, retiring, seemly, self-conscious, sheepish,
shy, silent, simple, temperate, timid, unassertive, unassuming, unassured, unboastful, unobtrusive, unpresuming, unpretending, unpretentious, withdrawing
Antonime: keep quiet