Webster's 1828 Dictionary
INTIMIDATING
ppr. Making fearful; abashing.
American Oxford Thesaurus
intimidating
intimidating adjective a tall man with an intimidating stare: frightening, threatening, menacing, sinister, brooding, daunting, tormenting, formidable, fearsome, terrifying, chilling, disturbing, disquieting; unfriendly, unwelcoming. WORD TOOLKIT Word Toolkits illustrate the difference between close synonyms by means of words typically used with them.
Sanseido Wisdom Dictionary
intimidating
in t í m i d à t ing 形容詞 威圧的な, 脅迫的な ; (人を )怖がらせるような, 自信をなくさせるような .
The Wordsmith Dictionary