Part of speech:
Inclined to feel anxiety or apprehension; timid; nervous.
Requiring the full application of one's abilities, attention, or resources:
Steep; hard to climb
(Law) Entailing more liabilities than benefits or imposing significant obligations.
Capable of being impressed.
Making a strong impression because of great size, strength, dignity, etc.; impressive
(Slang) Remarkable; outstanding:
Arousing fear or awe; formidable.
That alarms, or makes suddenly afraid or anxious; frightening
(--- Obsolete) Afraid.
Intensely eager; intense; ardent
Lacking in shade; undiminished:
Causing a feeling of horror; terrible; dreadful; frightful
Very heavy and powerful.
Effective or potent:
Difficult to endure; severe; harsh:
Causing consternation or dismay; frightful:
Warning of or having dreadful or terrible consequences; calamitous:
Foreshadowing evil or disaster; ominous.
Extremely unpleasant; distasteful or shocking:
(Now Rare) Frightened; timid
Easily scared; very timid.
(Archaic) Capable of making one tremble; terrible.
Requiring great physical exertion
Causing hardship or distress.
Requiring much effort or attention:
Demanding great care, patience, effort, etc.; arduous
Having or making urgent demands; demanding:
Hard to lift or move because of great weight; weighty
Marked by or requiring long, hard work:
Rigidly precise; thoroughly accurate or exact
Coarse or shaggy to the touch:
Causing great discomfort, damage, or distress:
Causing strain, hardship, or distress.
inspiring fear; ; - G.H.Johnston
Find another word for formidable. In this page you can discover 63 synonyms, antonyms, idiomatic expressions, and related words for formidable, like: difficult, intimidating, pleasant, fearful, forbidding, impregnable, challenging, arduous, onerous, overwhelming and impressive.