unbridled nationalism is a menace; it leads to trade wars and, all too often, real wars.
New studies show that unbridled hateful speech can cause emotional harm.
The fear of unbridled ambition is nothing new in American politics.
There was an unbridled joy—a glee—that was associated with watching Glee each week.
Wolves, bears, and cougars were the massed enemy on the hill, and our stories were of their unbridled ferocity.
He did not say a word, knowing my unbridled desire to meet danger.
This explains why they may be associated in the delirium of unbridled passions.
He had followed a false lure that his own unbridled imagination had lit.
What a river it was now, this unbridled Salagua which had been their moat and rampart for so many years!
What a terrible ordeal to a mind so untrained—to a temper so unbridled!
late 14c., originally in figurative sense of "unrestrained, ungoverned," from un- (1) "not" + bridled (see bridle (v.)). Cf. Middle Dutch ongebreidelt. Literal sense of "not fitted with a bridle" (of horses) is not recorded before 1550s. The verb unbridle is attested from c.1400 in the literal sense; mid-15c. in the figurative sense.