First recorded around 1765–75.
A variant of flabagast, which may be a combination of flabb(y), \"hanging loosely or limply\" or flap, \"a blow given with something broad and flat,\" and aghast, \"struck with overwhelming shock.\"
Sign up for more Word of the Day!

\r\nEXAMPLES OF FLABBERGAST\r\n

The magician's disappearing act never failed to flabbergast the audience.
The unexpected news about the new mayor flabbergasted the community.

\r\nIt's National Poetry Month, and we’ve created a challenge that really is for everyone. Submit now!","audio":"https://static.sfdict.com/audio/F01/F0183700.mp3","definitions":[{"partofspeech":"verb","data":"to overcome with surprise and bewilderment; astound."}],"examples":[],"imageUrl":"https://www.dictionary.com/e/wp-content/uploads/2024/03/flabbergast_IG.png","accentColor":"#0063D7"}},"status":"succeeded"}},"meta":{"requestId":"ulScDc42InBlBrJ6YnRjv","requestStatus":"fulfilled"}},{"type":"fetchWordsNearby/fulfilled","payload":{"data":{"before":[{"slug":"phenylethylene","entry":"phenylethylene"},{"slug":"phenylformic-acid","entry":"phenylformic acid"},{"slug":"phenyl-group","entry":"phenyl group"},{"slug":"phenylhydrazine","entry":"phenylhydrazine"},{"slug":"phenylic-acid","entry":"phenylic acid"}],"after":[{"slug":"phenylketonuria","entry":"phenylketonuria"},{"slug":"phenylmethane","entry":"phenylmethane"},{"slug":"phenylmethylcarbinyl-acetate","entry":"phenylmethylcarbinyl acetate"},{"slug":"phenylpropanolamine","entry":"phenylpropanolamine"},{"slug":"phenylpropyl-acetate","entry":"phenylpropyl acetate"}]}},"meta":{"arg":{"word":"phenyl-isocyanate"},"requestId":"YpHXOAPLtzuJDlFe7QTw_","requestStatus":"fulfilled"}},{"type":"luna/fetchExampleSentences/fulfilled","payload":{"data":{"tdb":[],"gbg":[]}},"meta":{"arg":{"word":"phenyl-isocyanate"},"requestId":"34mPWscrelSGf_R3ZGDC2","requestStatus":"fulfilled"}},{"type":"fetchDictionaryResults/fulfilled","payload":{"slugs":[{"entries":[{"__typename":"Entry","audioPronunciations":[],"confusableNotes":[],"genderNotes":[],"grammarNotes":[],"headword":{"displayForm":"phenyl isocyanate","slug":"phenyl-isocyanate"},"idioms":[],"orderKey":99999010,"ordinal":10,"origin":null,"partOfSpeechBlock":[{"definitions":[{"antonymsConnection":{"edges":[]},"definitionSetChunks":"[{\"type\": \"def\", \"children\": [{\"text\": \"a liquid reagent, C\", \"type\": \"text\"}, {\"text\": \"7\", \"type\": \"text\"}, {\"text\": \"H\", \"type\": \"text\"}, {\"text\": \"5\", \"type\": \"text\"}, {\"text\": \"NO, having an unpleasant, irritating odor: used chiefly for identifying alcohols and amines.\", \"type\": \"text\"}]}]","examples":[],"ordinal":1,"subdefinitions":[],"synonymsConnection":{"edges":[]}}],"inflectionSets":[],"labelSet":{"labelSetText":"Chemistry."},"ordinal":1,"partOfSpeech":"noun"}],"pronunciationNotes":[],"pronunciationSet":null,"relatedFormSets":[],"sensitiveNotes":[],"spellingNotes":[],"synonymStudy":[],"usageAlerts":[],"usageNotes":[],"variants":[],"verbPhrases":[]}],"url":"phenyl-isocyanate"}]},"meta":{"arg":{"slug":"phenyl-isocyanate"},"requestId":"gEz1AF7S4O0gKqJwu3vbb","requestStatus":"fulfilled"}},{"type":"fetchResultsData/fulfilled","payload":{"data":{"url":"phenyl-isocyanate","displayForm":"phenyl isocyanate","canonicalSlug":"phenyl-isocyanate","content":[{"source":"luna","entries":[{"id":"u3bb48a285cbafaf0.-3bc55cee.14d9e725cdd.6558","type":"normal","entry":"phenyl isocyanate","entrySyllabified":"phenyl isocyanate","entryVariants":[],"homograph":null,"pronunciation":null,"predefinitionContent":"","posBlocks":[{"definitions":[{"order":1,"type":"simple","predefinitionContent":"","postdefinitionContent":"","definition":"a liquid reagent, C7H5NO, having an unpleasant, irritating odor: used chiefly for identifying alcohols and amines.","synonyms":"","antonyms":"","cites":[]}],"pos":"noun","posSupplementaryInfo":"Chemistry."}],"origin":null,"originData":null,"supplementaryNotes":[],"variantForms":["Also called carbanil. "],"variantSpellings":[],"referenceData":[],"relatedForms":[],"confusables":[]}]}],"nearbyWordOrdinal":117130,"index-rank-01":["phenyl isocyanate"],"index-rank-02":[],"index-rank-03":[],"index-rank-04":["phenyl isocyanate's","phenyl isocyanates","phenyl isocyanates'"],"index-rank-05":[],"index-rank-06":[],"index-rank-07":[],"index-rank-08":[],"index-rank-09":[],"index-rank-10":[],"index-rank-11":[],"index-rank-12":[],"index-rank-13":[],"index-rank-14":[],"index-rank-15":[],"categoryId":"45","complexityScore":0.4887351765526598,"gradeLevel":"college","tunaSlug":null,"isFeaturedMetaSlug":false}},"meta":{"arg":{"word":"phenyl-isocyanate"},"requestId":"nGtG142Qvz3OlkUxRCWjN","requestStatus":"fulfilled"}},{"type":"fetchSpellSuggestions/fulfilled","payload":{"data":{"luna":[],"tuna":["phony","penal","phenom","finely","panel","evenly","fennel","keenly","thinly","phone","phial","venal","final","phonic","funnel"],"lunaWithSlug":[],"tunaWithSlug":[{"displayForm":"phony","slug":"phony"},{"displayForm":"penal","slug":"penal"},{"displayForm":"phenom","slug":"phenom"},{"displayForm":"finely","slug":"finely"},{"displayForm":"panel","slug":"panel"},{"displayForm":"evenly","slug":"evenly"},{"displayForm":"fennel","slug":"fennel"},{"displayForm":"keenly","slug":"keenly"},{"displayForm":"thinly","slug":"thinly"},{"displayForm":"phone","slug":"phone"},{"displayForm":"phial","slug":"phial"},{"displayForm":"venal","slug":"venal"},{"displayForm":"final","slug":"final"},{"displayForm":"phonic","slug":"phonic"},{"displayForm":"funnel","slug":"funnel"}]}},"meta":{"arg":{"word":"phenyl-isocyanate"},"requestId":"rCZ16i-x1nxFgIAQt-B_0","requestStatus":"fulfilled"}}]},"actionData":null,"errors":null}

phenyl isocyanate

noun

Word of the Day