| ANCIENTEST | • ancientest adj. Superlative form of ancient: most ancient. • ANCIENT adj. very old, also ANTIENT. | 
| CENTONISTS | • centonists n. Plural of centonist. • CENTONIST n. one who composes centos, poems manufactured by putting together passages of other poems, also CENTOIST. | 
| CONSISTENT | • consistent adj. Of a regularly occurring, dependable nature. • consistent adj. Compatible, accordant. • consistent adj. (Logic) Of a set of statements: such that no contradiction logically follows from them. | 
| CONSTATING | • constating v. Present participle of constate. • CONSTATE v. to assert. | 
| CONSTRAINT | • constraint n. Something that constrains; a restriction. • constraint n. An irresistible force or compulsion. • constraint n. The repression of one’s feelings. | 
| CONTESTING | • contesting v. Present participle of contest. • CONTEST v. to compete for. | 
| CONTINENTS | • continents n. Plural of continent. • Continents n. Plural of Continent. • CONTINENT n. a vast landmass not broken up by seas. | 
| COSENTIENT | • cosentient adj. Perceiving together. • COSENTIENT adj. perceiving together. | 
| DISCONTENT | • discontent n. (Uncountable) Dissatisfaction. • discontent n. (Uncountable) A longing for better times or circumstances. • discontent n. (Countable) A discontented person; a malcontent. | 
| INCONSTANT | • inconstant adj. Not constant; wavering. • inconstant adj. Unfaithful to a lover. • INCONSTANT adj. not constant, also UNCONSTANT. | 
| INCRUSTANT | • incrustant adj. Tending to leave an incrustation on a boiler or other container when the containing water evaporates. • incrustant n. Any substance that is dissolved in water which forms an incrustation when the water evaporates. • INCRUSTANT n. something tending to incrust. | 
| INDISTINCT | • indistinct adj. (Of an image etc) not clearly defined or not having a sharp outline; faint or dim. • indistinct adj. (Of a thought, idea etc) hazy or vague. • indistinct adj. (Of speech) difficult to understand through being muffled or slurred. | 
| INFECTANTS | • infectants n. Plural of infectant. • INFECTANT n. a thing that infects or causes infection. | 
| INJECTANTS | • injectants n. Plural of injectant. • INJECTANT n. a substance that is injected into something. | 
| INTACTNESS | • intactness n. The condition of being intact. • INTACTNESS n. the state of being intact. | 
| MISCONTENT | • miscontent adj. (Obsolete) discontent. • miscontent v. (Obsolete, transitive) discontent. • MISCONTENT v. (archaic) to discontent. | 
| NICTATIONS | • nictations n. Plural of nictation. • NICTATION n. the act of winking, also NICTITATION. | 
| NYCTINASTY | • nyctinasty n. (Botany) The movement of leaves or petals in response to darkness; the closing of a flower at night. • NYCTINASTY n. sleep-movement in plants, e.g. the closing of petals. |