counterclockwise

UK: /ˌkaʊntə^rˈklɒkwaɪz/

US: /ˌkaʊntɚˈklɑkˌwaɪz/

US: (koun′tər klok′wīz′)

WordReference Random House Learner's Dictionary of American English © 2025

coun•ter•clock•wise /ˌkaʊntɚˈklɑkˌwaɪz/   adj., adv. 

1. in a direction opposite to that of the normal turning of the hands of a clock.

WordReference Random House Unabridged Dictionary of American English © 2025

coun•ter•clock•wise  (koun′tər klok′wīz′), adj., adv. 

1. in a direction opposite to that of the normal rotation of the hands of a clock;
   not clockwise.

Also, contraclockwise;
 [esp. Brit.,] anticlockwise. 

• counter- + clockwise 1885–90

Collins Concise English Dictionary © HarperCollins Publishers::

counterclockwise / ˌkaʊntəˈklɒkˌwaɪz/, contraclockwise adverb , adjective

1. in the opposite direction to the rotation of the hands of a clock
   Also called (in Britain and certain other countries): anticlockwise