na-adjective
favorable; sympathetic; well-disposed
Describes an attitude, opinion, or reaction that is positive, approving, or kindly disposed toward someone or something. Often used with に as an adverb.
彼は私の提案に好意的な反応を示した。
He showed a favorable response to my proposal.
先生は生徒たちの質問に好意的に答えた。
The teacher answered the students' questions sympathetically.