All keenly synonyms

adverb keenly

• deceptively — apt or tending to deceive: The enemy's peaceful overtures may be deceptive.
• facilely — moving, acting, working, proceeding, etc., with ease, sometimes with superficiality: facile fingers; a facile mind.
• foxily — In a foxy manner.
• guilefully — In a guileful manner.
• trickily — given to or characterized by deceitful tricks; crafty; wily.