Found 12 stronger alternatives to upgrade your writing.
Intensity (casual)
Nuance: Strong feeling
Casual; common in speech.
Boring
The hike was extremely challenging because the trail was steep and rocky.
Better
The hike was really challenging because the trail was steep and rocky.
Intensity (casual)
Nuance: Emphasis
Casual; often emotional.
Boring
The hike was extremely challenging because the trail was steep and rocky.
Better
The hike was so challenging because the trail was steep and rocky.
Intensity (slang)
Nuance: Very
Slang/casual; not for formal essays.
Boring
The hike was extremely challenging because the trail was steep and rocky.
Better
The hike was super challenging because the trail was steep and rocky.
Intensity (simple)
Nuance: High intensity
Very common; less strong than extremely.
Boring
The hike was extremely challenging because the trail was steep and rocky.
Better
The hike was very challenging because the trail was steep and rocky.
Intensity (special case)
Nuance: Extra challenging
Means more than usual in this case.
Boring
The hike was extremely challenging because the trail was steep and rocky.
Better
The hike was especially challenging because the trail was steep and rocky.
Intensity (formal-ish)
Nuance: High degree
More formal; common in essays.
Boring
The hike was extremely challenging because the trail was steep and rocky.
Better
The hike was highly challenging because the trail was steep and rocky.
Intensity (strong)
Nuance: Very strong
Strong emphasis; can sound dramatic.
Boring
The hike was extremely challenging because the trail was steep and rocky.
Better
The hike was incredibly challenging because the trail was steep and rocky.
Intensity (noticing)
Nuance: Notable
Suggests it stands out.
Boring
The hike was extremely challenging because the trail was steep and rocky.
Better
The hike was remarkably challenging because the trail was steep and rocky.
Intensity (formal)
Nuance: Unusually high
Formal; means more than usual.
Boring
The hike was extremely challenging because the trail was steep and rocky.
Better
The hike was exceptionally challenging because the trail was steep and rocky.
Intensity (formal)
Nuance: Very strong
Very strong; formal.
Boring
The hike was extremely challenging because the trail was steep and rocky.
Better
The hike was extraordinarily challenging because the trail was steep and rocky.
Intensity (formal)
Nuance: Great extent
Formal; means to a great extent.
Boring
The hike was extremely challenging because the trail was steep and rocky.
Better
The hike was immensely challenging because the trail was steep and rocky.
Intensity (strong)
Nuance: Very strong
Strong; can sound dramatic.
Boring
The hike was extremely challenging because the trail was steep and rocky.
Better
The hike was tremendously challenging because the trail was steep and rocky.