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formidable synonyms
View Definitions
[
US
/ˈfɔɹmədəbəɫ, ˌfɔɹˈmɪdəbəɫ/ ]
[
UK
/fɔːmˈɪdəbəl/ ]
Synonyms
Inspiring fear or concern.
dangerous
terrible
fearful
forbidding
intimidating
impregnable
Hard to cope or overcome
difficult
overwhelming
challenging
arduous
onerous
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