| DIBASICITIES | • DIBASICITY n. the quality of being dibasic. | 
| DIMINISHINGS | • diminishings n. Plural of diminishing. • DIMINISHING n. the act of diminishing.
 | 
| DISABILITIES | • disabilities n. Plural of disability. • DISABILITY n. the condition of being disabled.
 | 
| DISQUISITION | • disquisition n. A methodical inquiry or investigation. • disquisition n. A lengthy, formal discourse that analyses or explains some topic; (loosely) a dissertation or treatise.
 • DISQUISITION n. a carefully argued examination of a topic.
 | 
| DISQUISITIVE | • disquisitive adj. Relating to disquisition; fond of discussion or investigation; inquisitive. • DISQUISITIVE adj. of or like a disquisition, also DISQUISITIONAL, DISQUISITIONARY, DISQUISITORY.
 | 
| DISUTILITIES | • disutilities n. Plural of disutility. • DISUTILITY n. the state of being counterproductive.
 | 
| DIVISIONISMS | • divisionisms n. Plural of divisionism. • DIVISIONISM n. pointillism.
 | 
| DIVISIONISTS | • divisionists n. Plural of divisionist. • DIVISIONIST n. a practitioner of divisionism.
 | 
| INDIVISIBLES | • indivisibles n. Plural of indivisible. • INDIVISIBLE n. an indefinitely small quantity.
 | 
| INSIPIDITIES | • insipidities n. Plural of insipidity. • INSIPIDITY n. the state of being insipid, also INSIPIDNESS.
 | 
| INSOLIDITIES | • INSOLIDITY n. want of solidity. | 
| IRIDISATIONS | • IRIDISATION n. iridescence, also IRIDIZATION. | 
| MISDIVISIONS | • misdivisions n. Plural of misdivision. • MISDIVISION n. a wrong division.
 |