Attentively, an adverb, means to pay close attention to something or someone. It implies dedication, concentration, and focus. Some notable synonyms for attentively include: closely, carefully, watchfully, diligently, and vigilantly. Other synonyms include studiously, intricately, thoroughly, observantly, and mindfully. One can also use "alertly," "heedfully," or "consciously" to denote the same level of attention. Additionally, "intently," "absorbedly," and "focally" are other synonyms that can be used when describing attentive behavior. It is essential to understand the appropriate use of each synonym to ensure that the intended meaning is well conveyed in context.