No. It is used most often as a verb, sometimes as a noun, but it is never an adjective.
(Adjectives related to need include needy and the past participle needed.)
No, needed is a verb.
Adjective
Palest is the Superlative Adjective for pale. To get the Superlative Adjective, you need to put the Adjective in the highest degree. EX: Big, Bigger, Biggest Tall, Taller, Tallest
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"Perfect" can be either a verb or an adjective: "His hair was perfect!" {adjective} "You need to perfect this poem before submitting it for publication. {verb}
"Banter" can be used as a noun or a verb. To make it an adjective you would need to use "bantering". "His bantering discourse annoyed everybody."
The adjective form for the noun need is needy.The adjective form for the verb to need is needed.
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Adjective
Secondary is the right adjective
Necessary is an adjective (needed, required).There are related nouns: need and necessity.
The suffix -ed can be added to the word "need" to form the past tense "needed."
The word further can be used as either an adjective or an adverb. As an adjective: the book is about the further adventures of Bill and Ted. As an adverb: you need to travel further.
The noun form of the adjective 'needy' is neediness.The word 'needy' is the adjective form of the noun need.
Palest is the Superlative Adjective for pale. To get the Superlative Adjective, you need to put the Adjective in the highest degree. EX: Big, Bigger, Biggest Tall, Taller, Tallest
The word 'apparently' is the adverb form of the adjective apparent.Example:The apparent cause of the problem is a dead battery. (adjective)You apparently need a new battery. (adverb)
The adjective form for the noun synthesis is synthetic. Example use: Synthetic flowers don't need to be watered.
It can be either an adverb or an adjective: In "you need to work harder", it is an adverb. But in "I wanted to do the harder tasks first", it is an adjective.