"needed" in the verb sense
1. necessitate, ask, postulate, need, require, take, involve, call for, demand
require as useful, just, or proper
"It takes nerve to do what she did"
"success usually requires hard work"
"This job asks a lot of patience and skill"
"This position demands a lot of personal sacrifice"
"This dinner calls for a spectacular dessert"
"This intervention does not postulate a patient's consent"
2. want, need, require
have need of
"This piano wants the attention of a competent tuner"
have or feel a need for
"always needing friends and money"
"needed" in the adjective sense
1. needed, needful, required, requisite
necessary for relief or supply
"provided them with all things needful"
Source: WordNet® (An amazing lexical database of English)
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