deadlock UK /ˈdɛdˌlɒk/US /ˈdɛdˌlɑk/noun 3verb 2forms 3phrases 1 noun3 •A standstill resulting from the opposition of two evenly matched forces; a stalemate or impasse.The negotiation ended in deadlock, with neither party willing to compromise on the price. •An inability to continue due to two programs or devices each requiring a response from the other before completing an operation. •Synonym of deadbolt (“type of lock”). verb2 •To cause or come to a deadlock. •To bring to a state of deadlock. formsdeadlocked · deadlocking · deadlocks Phrases with deadlock break the deadlockTo score the first goal or point in a competition.