-acious (Latin: a suffix; inclined to, given to, tendency to be, abounding in).A suffix that forms adjectives.capacious:Able to hold much; roomy, spacious, wide. efficacious: 
Capable of producing a desirable effect; effective.
 
fallacious: 
1. Containing fundamental errors in reasoning.  
2. Misleading, deceptive. loquacious: 
Extremely talkative, gabby.
 
mendacious: 
Not truthful, lying or false; such as a mendacious story.
 
pugnacious: 
Having a quarrelsome, combative disposition, belligerent; an eagerness to fight or argue issues instead of calm consideration.
 
rapacious: 
1. Taking by force, plundering.  
2. Ravenous; greedy. sagacious: 
Having or showing sound judgment and keen perception, wise; farsightedness.
 
salacious: 
1. Sexually appealing or stimulating; lascivious; lecherous.  
2. Lustful; bawdy. spacious: 
Offering or containing much space or room; extensive.
 
tenacious: 
Holding or tending to hold firmly; persistent.
 
veracious: 
1. Truthful, honest.  
2. Accurate; precise. vivacious: 
Filled with animation and spirit; lively, brisk.
 
voracious: 
Consuming, or eager to consume, great amounts of food, ravenous; marked by an unsatisfied appetite for an activity or a pursuit, greedy; as a voracious reader or a voracious writer.
 
audacious: 
bibacious: 
fugacious: 
fumacious: 
inveracious: 
linguacious: 
multiloquacious: 
obstinacious: 
perspicacious: 
predacious: 
scribacious: 
sebacious: 
soliloquacious: 
somniloquacious: 
umbracious: 
unfallacious: 
vitrificacious: 
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