unusually · adverb /ʌnˈju.ʒu.əl.i/Full view
unusually big/strong/good,etc.
B2 bigger, stronger, better, etc., than is normal
Dictionary example:

unusually warm weather

Learner example:

On you[r] free afternoon I suggest you visit our local museum, which is unusually large for such a small town. (First Certificate in English; B2; Russian)

unusually
C2 in different way than is usual or expected
Dictionary example:

He seemed unusually quiet the last time we was him.

Learner example:

She struck them both as being unusually dressed, even taking in account that this way of dressing was [the] rule rather than the exception. (Certificate of Proficiency in English; C2; Danish)

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