effusive /ɪˈfjuːsɪv/ adjective3 •Gushy; unrestrained, extravagant or excessive (in emotional expression). •Extrusive; having solidified after being poured out as molten lava. •(no longer used) Pouring, spilling out freely; overflowing.wash'd with the effusive wave — 1726 formsmore effusive · most effusive