Define intimidating. intimidating synonyms, intimidating pronunciation, intimidating translation, English dictionary definition of intimidating. tr.v. in·tim·i·dat·ed , in·tim·i·dat·ing , in·tim·i·dates 1. To make timid; fill with fear: The size of the opposing players intimidated us. 2. If you describe someone or something as intimidating, you mean that they are frightening and.... Click for English pronunciations, examples sentences, video. Intimidating definition: Sometimes intimidatory intended to frighten someone or to force or stop someone’s action through fear.. See examples of INTIMIDATING used in a sentence. The adjective "intimidating" suggests an ability or potential to cause fear or unease, often influencing behavior or decision-making in an attempt to avoid confrontation or negative outcomes.