- frivolous18
- froufrous17
- fructuous18
- frugivorous22
- fucous14
- fucus13
- fugacious19
- fugus12
- fulgurous18
- fuliginous19
- fulvous17
- fumulus17
- fundus13
- fungous15
- fungus14
- funiculus20
- furious12
- fuscous15
- gagakus16
- gallinaceous21
- gallous12
- gallus11
- gametogenous21
- gamopetalous22
- gangrenous17
- garnetiferous20
- garrulous14
- gaseous10
- gastrocnemius23
- gateaus10
- gelatinous15
- generous12
- genius10
- genus9
- geosynchronous26
- gibbous16
- glabrous15
- gladiolus15
- glamorous16
- glamourous18
- glaucous16
- globous14
- glomerulus19
- glomus13
- glorious12
- glutenous15
- gluteus12
- glutinous15
- gluttonous16
- gnus8
- goitrous11
- gonococcus23
- gorgeous13
- gracious14
- gradus10
- gramineous17
- graminivorous24
- grampus16
- granivorous19
- granulomatous22
- gratuitous14
- gregarious15
- grievous15
- griseous11
- grugrus13
- grumous14
- gummatous19
- gummous17
- gurus9
- gymnospermous28
- gynandrous18
- gypseous16
- gypsiferous22
- gyrus10
- habitus13
- habus11
- haikus13
- halitus11
- halogenous17
- hamulous16
- hamulus15
- hantavirus18
- harmonious17
- harquebus25
- hausfraus16
- hazardous22
- hebetudinous21
- heinous11
- heliolatrous17
- hellacious18
- hematogenous21
- hematophagous26
- hemimetabolous27
- hemipterous20
- hemizygous29
- herbaceous19
- herbivorous21
- herpesvirus21
- heterocystous21
- heteroecious18
- heterogamous20
- heterogeneous19
- heterogenous18
- heterologous18
- heteronomous19
- heterophyllous26
- heteropterous19
- heterosporous19
- heterozygous28
- hiatus9
- hibiscus17
- hideous11
- hilarious13
- hilus9
- hippocampus29
- hippopotamus27
- hocus11
- holometabolous25
- homogamous21
- homogeneous20
- homogenous19
- homologous19
- homonymous22
- homophonous23
- homopterous20
- homosporous20
- homozygous29
- homunculus23
- horrendous15
- hugeous13
- humerus14
- hummus16
- humongous19
- humorous15
- humungous20
- humus12
- hydrocephalus28
- hydrogenous20
- hydrous13
- hygrophilous25
- hymenopterous25
- hypercautious25
- hyperconscious29
- hyperfastidious27
- hypogeous19
- hypogynous23
- hypothalamus26
- iambus13
- ichorous14
- ichthyophagous31
- icterus11
- ictus9
- idolatrous13
- idoneous11
- iglus9
- igneous11
- ignominious19
- ignoramus16
- ileus7
- illustrious15
- impecunious23
- imperious16
- impervious21
- impetiginous22
- impetuous17
- impetus14
- impious14
- imporous15
- impromptus23
- inauspicious21
- incautious16
- incestuous16
- incommodious24
- incongruous20
- inconnus15
- inconspicuous26
- incredulous19
- incubus16
- incurious15
- incus10
- indecorous16
- indigenous16
- industrious15
- inefficacious27
- infamous16
- infectious18
- infelicitous21
- ingenious14
- ingenuous15
- inglorious15
- inharmonious20
- inhomogeneous23
- iniquitous22
- injudicious27
- injurious21
- innocuous16
- innumerous17
- insalubrious19
- insectivorous22
- insidious12