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List of 15-letter words containing

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There are 16 fifteen-letter words containing I, 2L, N, P, R, S and Y

ANISOTROPICALLYanisotropically adv. In an anisotropic manner; in such a way as to depend upon direction.
ANISOTROPIC adv. not having the same properties in every direction.
HYPOCRYSTALLINEhypocrystalline adj. (Geology, of igneous rocks) having both glass and crystalline components.
HYPOCRYSTALLINE adj. of igneous rocks, having both glass and crystalline components.
INSPIRATIONALLYinspirationally adv. In an inspirational manner.
INSPIRATIONAL adv. relating to inspiration.
INTERPERSONALLYinterpersonally adv. In an interpersonal way.
INTERPERSONAL adv. relating to relations between persons.
IONOSPHERICALLYionospherically adv. In terms of the ionosphere.
IONOSPHERIC adv. relating to the ionosphere.
POLYCRYSTALLINEpolycrystalline adj. Composed of an aggregate of very small crystals in random orientations.
POLYCRYSTALLINE adj. consisting of crystals variously oriented.
PREPOSITIONALLYprepositionally adv. In a prepositional manner.
prepositionally adv. As a preposition.
PREPOSITIONAL adv. relating to a preposition.
PRESYNAPTICALLYpresynaptically adv. In a presynaptic manner.
PRESYNAPTIC adv. relating to a neuron by which a nerve impulse is conveyed to a synapse.
PROGRESSIONALLYPROGRESSIONAL adv. relating to progression.
PROPOSITIONALLYpropositionally adv. In a propositional manner.
PROPOSITIONAL adv. of the nature of a proposition.
SEPTENTRIONALLYseptentrionally adv. (Obsolete, nonce word) northerly.
SEPTENTRIONAL adv. (obsolete) northern, also SEPTENTRIAL.
SLUMPFLATIONARYslumpflationary adj. Relating to slumpflation.
SLUMPFLATIONARY adj. relating to slumpflation.
SPLENDIFEROUSLYsplendiferously adv. In a splendiferous manner.
SPLENDIFEROUS adv. splendid.
SUPERNATIONALLYsupernationally adv. In a way that spans nations; above or beyond what is national.
SUPERNATIONAL adv. overriding national sovereignty; in or belonging to more than one nation.
SUPPLEMENTARILYsupplementarily adv. In a supplementary way; additionally.
SUPPLEMENTARY adv. added or serving as a supplement.
SUPRANATIONALLYsupranationally adv. In a supranational way.
SUPRANATIONAL adv. transcending national boundaries, authority, or interests.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the WikWik.org and 1Word.ws.

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See this list for:

  • English Wiktionary: 86 words
  • Scrabble in French: 5 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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