Adjective may be more rigid in some languages than others; in some, like Spanish, it may only be a default ("unmarked") word order, with other orders being permissible. Other languages, such as Tagalog, follow their adjectival orders as rigidly as English. The normal adjectival order of English may be overridden in certain circumstances, especially when one adjective is being fronted. In addition, the usual order of adjectives in English would result in the phrase "the bad big wolf" (opinion before size), but instead the usual phrase is "the big bad wolf", perhaps because the ablaut reduplication rule that high vowels precede
Adjective have special verbal forms called participles that can act as noun modifiers (alone or as the head of a phrase). Sometimes participles develop into pure adjectives. Examples of this in English include "relieved" (the past participle of the verb "relieve", used as an adjective in sentences such as "I am so relieved to see you"), "spoken" (as in "the spoken word"), and "going" (the present participle of the verb "go", used as an adjective in such phrases as "the going rate"). Other constructs that often modify nouns include prepositional phrases (as in "a rebel "without a cause""), relative clauses (as