The forward, born in Hackney, joined the Hornets in October 2018.
Adeyemo, who is eligible for both the English and Nigerian national teams, scored against Chelsea in the FA Youth Cup during the 2021/22 season. He joined Hitchin Town on loan for one month in November 2022.
In January 2023, Adeyemo made his first-team debut for the Hornets against Reading in the Emirates FA Cup. He then scored the opener on his home league debut in a 2-0 victory over Blackpool, just four minutes after coming on.
After making three further appearances in the Championship in the 2022/23 season, Adeyemo signed his first professional deal with the Hornets in April 2023.
He agreed a three-year deal with the option for a further 12 months.
In March 2024, the striker joined National League side Wealdstone on loan until the end of the season.
