Comprehensively and For certain

Comprehensively adverb - With attention to all aspects or details.

For certain and comprehensively are semantically related. In some cases you can use "For certain" instead an adverb "Comprehensively".

For certain adverb - Definitely or positively (`sure' is sometimes used informally for `surely').

Comprehensively and for certain are semantically related. Sometimes you can use "Comprehensively" instead an adverb phrase "For certain".