10 letters
- hyperalert18
- hyperaware20
- hyperbaric23
- hyperbolae21
- hyperbolic24
- hypergolic23
- hypermedia21
- hyperploid22
- hypertonia18
- hypertonic21
- hypocenter21
- hypocrites20
- hypodermal22
- hypodermic24
- hypotactic23
- hysterical18
- iatrogenic16
- iconically21
- iconolatry17
- icosahedra16
- idealogies14
- ideational13
- ideogramic19
- ideographs18
- ideography20
- ideologies14
- ideologist14
- ideologize23
- idiolectal16
- idiopathic19
- idolatries12
- illatively19
- illegality17
- illegalize24
- illiteracy17
- illiterate12
- imperially20
- imperilled19
- implicated21
- impolitely20
- imprecated20
- incapacity22
- inchoately19
- indelicacy21
- indelicate16
- indicatory17
- indirectly18
- inertially15
- ingathered16
- intaglioed15
- integrally17
- intergrade14
- interiorly14
- interlaced16
- interlayer14
- interlocal16
- interloped16
- interloper15
- interplead16
- inthralled16
- intrepidly18
- irenically18
- ironically18
- irradiance15
- irradiated12
- irradiates11
- irradiator11
- irrational12
- irrelative15
- irrigators12
- isocaloric17
- isoplethic19
- karyologic22
- laboratory16
- laccoliths20
- lacerating17
- laceration15
- lacerative18
- lacrimator17
- lactogenic20
- lanceolate16
- laparotomy19
- lapidarian16
- lapidaries15
- lapidating18
- larvicidal20
- laryngitic19
- lateraling15
- lateralize21
- lateralled14
- lathyritic18
- lavalliere17
- leadership17
- leathering16
- lectionary17
- legalistic17
- legalities14
- legateship18
- legislated15
- legislator14
- legitimacy21
- lepidolite16
- leprosaria14
- lethargies15
- levorotary17
- lexicality24
- lexicology26
- liberality17
- lighterage17
- lightfaced22
- lightplane20
- lightproof21
- likelihood19
- limitrophe19
- lipotropic20
- lipreading18
- literacies14
- literality14
- literalize21
- literarily14
- literately14
- lithograph20
- lithologic19
- liturgical18
- livelihood19
- localities15
- locational16
- logaoedics17
- loggerhead18
- logicality19
- logistical17
- logorrheas15
- logorrheic18
- logotypies18
- logrollers15
- longhaired17
- lyophilise19
- lyophilize28
- macrocytic24
- macrophage23
- macrophyte23
- madreporic20
- malacology22
- malapertly20
- malolactic21
- materially17
- matriarchy20
- matricidal18
- mediocrity19
- megalithic21
- meliorated15
- meliorator14
- metacarpal20
- metaphoric21
- methodical20
- methyldopa22
- metrically20
- microcytic24
- micrograph23
- microliter17
- microphage23
- microphyll25
- micropylar22
- moderately17
- mortadella16
- motorcycle22
- myocardial20
- mythologer20
- mythologic23
- mythopoeia20
- mythopoeic23
- neophiliac20
- nephridial18
- nephrology21
- notarially15
- nyctalopia20
- obligately19
- obligatory18
- occidental19
- occipitals20
- ochlocracy24
- ochlocrats19
- octahedral17
- octahedron17
- octarchies18
- oleographs18
- oligarchic21
- oligoclase17
- oligomeric19
- oligophagy22
- operagoers15
- operculate18
- optionally18
- oracularly18
- oratorical14
- orchardist16
- orchestral16
- orchidlike21
- ordinarier12
- ordinarily15