i Register
In some senses, massively is marked as slang. Watch for register when choosing this word.
ADJ.
defensive, enhanced, impressive, increased, inert, muscular, popular, used
VERB + MASSIVELY
abolished, crossing, decrease, needs, simmering, spending, struggle
MASSIVELY + NOUN
algeria, ceo, electricity, ramp, shyness, tariffs
PREP.
in, up, with
ADV.
gently