effusive

• POS: Adjective
• HYPHEN: ef=fu=sive

CIDE DICTIONARY

effusive, a. 

•  Pouring out; pouring forth freely.  Pope.  [1913 Webster]
•  formed by an outpouring of molten lava, or pertaining to rocks so formed.  [PJC]
•  overly demonstrative; expressing emotion in an unrestrained manner; exhibiting unrestrained enthusiasm; -- of people and human actions; as, effusive thanks; an effusive letter of recommendation. Contrasted with reserved.  [PJC]

Effusive rocks (Geol.), volcanic rocks formed by a nonexplosive outpouring of lava in molten or plastic form; in distinction from so-called intrusive, or plutonic, rocks.

OXFORD DICTIONARY

effusive, adj.
1 gushing, demonstrative, exuberant (effusive praise).
2 Geol. (of igneous rock) poured out when molten and later solidified, volcanic.

Derivative

effusively adv. effusiveness n.

THESAURUS

effusive

abundant, accessible, all jaw, approachable, candid, chatty, cloying, communicative, conversable, conversational, copious, demonstrative, diffuse, diffusive, ebullient, effluent, effused, emotional, expansive, extravagant, extravasated, extroverted, exuberant, fecund, flip, fluent, formless, frank, free, free-speaking, free-spoken, free-tongued, fulsome, gabby, garrulous, gassy, glib, gossipy, gregarious, gushing, gushy, lavish, long-winded, loquacious, multiloquent, multiloquious, newsy, open, outbound, outflowing, outgoing, outpouring, outspoken, outward-bound, overenthusiastic, overflowing, overtalkative, pleonastic, prodigal, productive, profuse, profusive, prolific, prolix, redundant, reiterative, repetitive, rhapsodic, self-revealing, self-revelatory, slobbering, slobbery, sloppy, slushy, smarmy, smooth, sociable, superabundant, talkative, talky, tautologous, teeming, unchecked, unconstrained, unhampered, unrepressed, unreserved, unrestrained, unrestricted, unreticent, unsecretive, unshrinking, unsilent, unsuppressed, verbose, voluble, windy