tennis
questionableness
Beech.
zoroastrian
How about "kaleidoscopic"? Kinesthesiologist.
· unpredictable
waspxyleborus (a big bark beetle),
bacteriologistbacteriotherapeuticballistocardiographbaresthesiometerbarocyclonometerbarothermohygrographbasicytoparaplastinbatrachomyomachybeautificationbenzalphenylhydrazonebenzofuroquinoxalinebenzophenanthrazinebenzophenanthrolinebenzophloroglucinolbenzoxyphenanthrenebioastronauticalbioclimatologiesbiodegradabilitybioelectricitiesbioenvironmentalbiologicohumanisticbioluminescencebiorhythmicitiesbiotechnologicalbipotentialitiesblabbermouthblepharoblennorrheablepharochromidrosisblepharoconjunctivitisblepharohematidrosisblepharosphincterectomyblepharosyndesmitisbloodhoundbloodthirstinessboroughmongeringbougainvilleabouillabaissebourgeoisiebrachiofaciolingualbrachycatalecticbrachycephalizationbronchoaspergillosisbronchoconstrictionbronchoesophagoscopybronchomucormycosisbronchopneumoniabronchopulmonarybureaucraticallybutterscotchBusinesslike, bloodthirstiness and bibliographically are big words.
Sharks, Scimitar-horned oryx sharksand stegasaurus
good-looking, graceful, gorgeous
Big is an adjective. Words that modify adjectives are called adverbs. Really is an adverb that can modify big.
· Barracuda · Big Mouth Bass · Blowfish · Bonefish
Examples of abstract nouns that begin with O are:obedienceoccurrenceoccupationoperationopinionorganizationoriginalityoncology