12-Letter Words Containing: I,A,N,A,S

• susceptible to being defeated

• tending to deprive of oxygen

• an antihypertensive drug (trade name Apresoline) that dilates blood vessels; used (often with a diuretic) to treat hypertension and congestive heart failure

• the condition of being deprived of oxygen (as by having breathing stopped)

• killing by depriving of oxygen

• something unspecified whose name is either forgotten or not known

• mediation in order to bring about a marriage between others

• To attack someone (especially verbally) unfairly in a deceitful, underhand, or treacherous manner, especially when they're not present in the place or situation that it happens. (as if stabbing them in the back). See backbite.

• The act of one who backstabs.