in ‧ ten ‧ tion ‧ al /ɪnˈtenʃ ə nəl/ BrE AmE adjective
[ Word Family: adjective : intended ≠ UNINTENDED , ↑ intentional ≠ ↑ unintentional , ↑ intent ; noun : ↑ intent , ↑ intention ; verb : ↑ intend ; adverb : ↑ intentionally ≠ ↑ unintentionally ]
done deliberately and usually intended to cause harm SYN deliberate OPP unintentional :
I did trip him, but it wasn’t intentional.
—intentionally adverb :
intentionally vague promises