- Individually Adv
- Indivisibly Adv
- Indolently Adv
- Indomitably Adv
- Indubitably Adv
- Inductively Adv
- Indulgently Adv
- Industrially Adv
- Industriously Adv
- Industrywide Adj Adv
- Ineffably Adv
- Ineffaceably Adv
- Ineffectively Adv
- Ineffectually Adv
- Inefficaciously Adv
- Inefficiently Adv
- Inelegantly Adv
- Ineligibly Adv
- Ineloquently Adv
- Ineluctably Adv
- Ineptly Adv
- Inequally Adv
- Inequitably Adv
- Inerrably Adv
- Inertially Adv
- Inertly Adv
- Inescapably Adv
- Inessentially Adv
- Inestimably Adv
- Inevitably Adv
- Inexactly Adv
- Inexcusably Adv
- Inexhaustibly Adv
- Inexorably Adv
- Inexpensively Adv
- Inexpertly Adv
- Inexplicably Adv
- Inexpressibly Adv
- Inextinguishably Adv
- Inextricably Adv
- Infallibly Adv
- Infamously Adv
- Infatuatedly Adv
- Infectiously Adv
- Inferentially Adv
- Infernally Adv
- Infertilely Adv
- Infinitely Adv
- Infinitesimally Adv
- Infirmly Adv
- Inflammatorily Adv
- Inflexibly Adv
- Influentially Adv
- Informally Adv
- Informatively Adv
- Informedly Adv
- Informingly Adv
- Infra Adv
- Infrangibly Adv
- Infrequently Adv