intriguingгерундий или причастие настоящего времени Used attributively to describe someone or something that is currently engaging in intrigue.
intriguingсуществительное Gerund meaning 'the act of intriguing'; can function as an uncountable noun, rarely countable in plural.
intrigueгерундий или причастие настоящего времени Used for the present-participle adjective ‘intriguing’, meaning ‘arousing curiosity or fascination’.