importantly

im·por·tant  (m-pôrtnt)

adj.

1. Strongly affecting the course of events or the nature of things; significant: an important message that must get through; close friends who are important to me.

2. Having or suggesting a consciousness of high position or authority; authoritative: recited the decree with an important air.

3. Obsolete Importunate.

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[Middle English, from Old French, from Medieval Latin importns, important-, present participle of importre, to mean, from Latin, to import; see import.]

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im·portant·ly adv.

Usage Note: Some critics have objected to the use of the phrase more importantly in place of more important when one introduces an assertion, as in More importantly, no one is ready to step into the vacuum left by the retiring senator. But both forms are widely used by reputable writers, and there is no obvious reason for preferring one or the other.

Thesaurus

Adv.	1.	importantly - in an important way or to an important degree; "more importantly, Weber held that the manifold meaning attached to the event by the social scientist could alter his definition of the concrete event itself" significantly
	2.	importantly - in an important way; "for centuries jellies have figured importantly among English desserts, particularly upon festive occasion"

Translations

importantly [ɪmˈpɔːtəntlɪ] adv (pej) → dándose importancia;

but, more importantly ... → pero, lo que es aún más importante ...

importantly [ɪmˈpɔːtntlɪ] adv (= with an air of importance) → d'un air important (= essentially);

but, more importantly ... → mais, (ce qui est) plus important encore ...

importantly [ɪmˈpɔːtəntlɪ] important adv → wichtigtuerisch;

but more importantly ... → aber was noch wichtiger ist, ...

importantly [ɪmˈpɔːtəntlɪ] adv (pej) → con (un'aria d')importanza;

but, more importantly, ... → ma, quel che più conta or importa, ...