ADJECTIVAL PHRASES

Adjectival phrases are any phrases that do the job of an adjective in describing or modifying a noun or pronoun :
* an extremely skillful operation
* a heart - in -the -mouth operation
* a long awaited operation

* a very successfully operation
* a brilliantly performed operation
* a round -the -clock operation
* an operation on the kidneys 
* The operation was quite painless .
TYPES AND POSITIONS OF ADJECTIVAL PHRASES
Adjectival phrases can come before or after a noun , and can take many different forms.
Adjectival phrases used before a noun ( pre -modification)
1  an intensifier, moderator, or other adverb + adjective :
   * a rather silly remark , miserably cold weather
2  *an adverb +participle :
    * dubiously acquired wealth , a hard -won battle
 3 a possessive expression :
* the headmaster 's room   , last year 's report
4 hyphenated phrases of various kinds
noun phrase
* a ten story building , a seventy foot yacht
phrases based on an adjective
 *a blood -red lipstick , crystal-clear water
a prepositional phrase
*in -your -face language ,an over- the- top  reaction
a phrase based on a participle
* a leather -bound book , sun -dried bananas , index -linked pensions
an adjective or number + noun formed into an -ed participle
* blond haired children ,long -legged animals ,four -winged insects
a phrasal- verb derivative
* some left- over food , a much sought -after delicacy
other combinations
*up -and- down mood swings , wall -to wall carpets