flirtatiousadjective
uk/flɜːˈteɪ.ʃəs/us/flɝːˈteɪ.ʃəs/behaving as if you are sexually attracted to someone, especially not in a serious way:
She's very flirtatious.
a flirtatious relationship
flirtatiously
adverb uk/flɜːˈteɪ.ʃəs.li/us/flɝːˈteɪ.ʃəs.li/
flirtatiousness
noun [ U ] uk/flɜːˈteɪ.ʃəs.nəs/us/flɝːˈteɪ.ʃəs.nəs/