14 letters
- groundlessness21
- gruesomenesses21
- guilefulnesses24
- haberdasheries22
- habitabilities23
- habitualnesses22
- hairlessnesses18
- handkerchieves31
- handsomenesses22
- hardhandedness23
- hardheadedness22
- hardinggrasses22
- harmlessnesses21
- harmoniousness22
- hatchabilities25
- headlessnesses19
- headmistresses20
- heavenlinesses23
- heedlessnesses19
- helplessnesses22
- hemerocallises24
- hemicelluloses26
- hepatomegalies25
- heritabilities20
- hermaphrodites25
- heteroduplexes29
- heterogameties21
- heterokaryoses22
- heterophyllies25
- heteroploidies21
- heterotrophies21
- highhandedness26
- hippopotamuses29
- histoplasmoses23
- historicalness21
- homelessnesses21
- homeschoolings28
- homesicknesses27
- homozygosities32
- honorabilities21
- hopelessnesses21
- hornlessnesses19
- horriblenesses21
- humorousnesses22
- hyaluronidases22
- hydrobiologies25
- hydrocephalies28
- hydrochlorides26
- hydroperoxides30
- hydrotherapies24
- hydroxylamines33
- hyperacidities25
- hyperaesthesia23
- hyperaesthetic26
- hyperawareness25
- hypercatalexes32
- hyperesthesias23
- hyperimmunizes38
- hyperkeratoses25
- hyperparasites24
- hyperpolarizes34
- hypnotherapies27
- hypodiploidies27
- hypomagnesemia30
- hyposensitizes31
- hypotonicities25
- hysterectomies24
- idiosyncrasies21
- idolatrousness18
- ignitabilities21
- ignorantnesses19
- illegibilities22
- illegitimacies24
- illiberalities20
- illiterateness17
- illogicalities22
- illusivenesses22
- illusorinesses18
- imaginableness25
- immaterializes30
- immoderateness22
- immovabilities28
- immunosuppress29
- immutabilities25
- impartialities21
- impassableness25
- imperativeness25
- impercipiences30
- impermanencies28
- impersonalizes31
- impertinencies25
- imperviousness26
- implicitnesses25
- impolitenesses22
- impossibleness25
- impressibility26
- impressionable25
- impressionisms24
- impressionists21
- impressiveness25
- impropernesses24
- improvisatores24
- imputabilities25
- inadequateness27
- inadvertencies24
- inappositeness22
- inarticulacies23
- inaudibilities21
- incandescences27
- incandescently27
- incapabilities25
- incautiousness21
- incestuousness21
- inchoatenesses21
- incisivenesses23
- incombustibles29
- incompetencies28
- incompleteness26
- incompressible28
- inconcinnities24
- inconformities25
- inconsequences33
- inconsistences23
- incontinencies24
- inconveniences28
- incorporeities21
- incorruptibles26
- incredibleness24
- indebtednesses21
- indecisiveness24
- indecorousness21
- indefiniteness21
- indelibilities21
- indelicateness21
- independencies25
- indestructible24
- indestructibly26
- indifferencies26
- indigenousness21
- indirectnesses20
- indiscreetness20
- indispensables24
- indistinctness21
- individualises23
- individualizes32
- inducibilities24
- industrialises18
- industrializes27
- ineffabilities25
- inefficiencies28
- inelasticities19
- inevitableness24
- inexorableness27
- inexpediencies30
- inexpertnesses26
- inexpressively32
- infectiousness23
- infinitenesses20
- infinitesimals23
- inflexibleness31
- inflorescences26
- infusibilities23
- ingloriousness20
- ingressiveness22
- inimitableness23
- iniquitousness27
- innovativeness25
- inordinateness18
- insatiableness20
- insecurenesses20
- insensibleness21
- insolubilities21
- instructresses19
- insubordinates21
- insuppressible26
- insurabilities20
- intangibleness23
- intercessional20
- interdigitates18
- interfaculties23
- intermarriages20
- intermediacies22
- intermediaries19
- intermittences22
- interpermeates21
- interrogatives21
- intimatenesses19
- intolerantness18
- intransigences22
- intrepidnesses20
- introgressants18
- introgressions18
- invaluableness26
- invasivenesses24
- investigations22
- invincibleness28
- inviolableness25
- invisibilities23
- irascibilities21
- ironicalnesses20