Etimology
From Middle English clerli, clerely, clerelych, cleerliche, clerliche, equivalent to clear + -ly.
adverb
clearly (comparative more clearly or (archaic) clearlier, superlative most clearly or (archaic) clearliest)
(manner) In a clear manner.
(modal) Without a doubt; obviously.
(degree) To a degree clearly discernible.
Examples
He enunciated every syllable clearly.
Clearly, the judge erred in his opinion.
While Gunners boss Arsene Wenger had warned his players against letting the pre-match festivities distract them from the task at hand, they clearly struggled for fluency early on.
He was clearly wrong on all points but one.
Related words
synonyms
(without a doubt): expressly, unambiguously; see also Thesaurus:explicitly or Thesaurus:obviously