UNCOMMONLY
uncommonly
(adverb) exceptionally; “a common remedy is uncommonly difficult to find”
Source: WordNet® 3.1
Etymology
Adverb
uncommonly (comparative more uncommonly, superlative most uncommonly)
To an uncommon degree; unusually or extremely.
Not often; on rare occasions.
Synonyms
• (to an uncommon degree): atypically, unwontedly; see also unusually
• (not often): sometimes, sporadically; see also occasionally
Source: Wiktionary
UNCOMMON
Un*com"mon, a.
Definition: Not common; unusual; infrequent; rare; hence, remarkable;
strange; as, an uncommon season; an uncommon degree of cold or heat;
uncommon courage.
Syn.
– Rare; scarce; infrequent; unwonted.
– Un*com"mon*ly, adv.
– Un*com"mon*ness, n.
Source: Webster’s Unabridged Dictionary 1913 Edition