| infallibility | (noun) the quality of never making an error | - |
|---|
| infallible | (adjective) incapable of failure or error | - |
|---|
| infamous | (adjective) known widely and usually unfavorably | Synonyms: ill-famed, notorious |
|---|
| infamy | (noun) a state of extreme dishonor | Synonyms: opprobrium |
|---|
| (noun) evil fame or public reputation | - |
| infancy | (noun) the earliest state of immaturity | Synonyms: babyhood |
|---|
| (noun) the early stage of growth or development | Synonyms: babyhood, early childhood |
| infant | (noun) a very young child (birth to 1 year) who has not yet begun to walk or talk | Synonyms: babe, baby |
|---|
| infanticide | (noun) murdering an infant | - |
|---|
| (noun) a person who murders an infant | - |
| infantile | (adjective) of or relating to infants or infancy | - |
|---|
| (adjective) indicating a lack of maturity | Synonyms: childish |
| (adjective) being or befitting or characteristic of an infant | - |
| infantilism | (noun) infantile behavior in mature persons | - |
|---|
| (noun) an abnormal condition in which an older child or adult retains infantile characteristics | - |
| infantry | (noun) an army unit consisting of soldiers who fight on foot | Synonyms: foot |
|---|
| infantryman | (noun) fights on foot with small arms | Synonyms: foot soldier, footslogger, marcher |
|---|
| infarct | (noun) localized necrosis resulting from obstruction of the blood supply | Synonyms: infarction |
|---|
| infarction | (noun) localized necrosis resulting from obstruction of the blood supply | Synonyms: infarct |
|---|
| infatuate | (verb) arouse unreasoning love or passion in and cause to behave in an irrational way | - |
|---|
| infatuated | (adjective) marked by foolish or unreasoning fondness | Synonyms: enamored, in love, potty, smitten, soft on, taken with |
|---|
| infatuation | (noun) an object of extravagant short-lived passion | - |
|---|
| (noun) a foolish and usually extravagant passion or love or admiration | - |
| (noun) temporary love of an adolescent | Synonyms: calf love, crush, puppy love |