One rarely used synonym for sensitive is "susceptible".
The plural of necessity is necessities.
The abstract noun of the adjective "necessary" is "necessity."
Pure aluminium is expensive.
A synonym for waterspout is a whirlwind or a tornado at sea.
seldom
No.
One rarely used synonym for sensitive is "susceptible".
It would be not often or infrequently
An unfair comparison can be rewritten as "a discriminatory association". One-sided, lopsided, uneven, unjust, biased
Primarily Protestants use the term 'christening' as a synonym for Baptism. It is rarely heard in proper Catholic circles.
No, let is a verb, or more rarely a noun. The past participle is also let, but it is not used formally as an adjective. The usual adjective is the synonym allowed.
Commonly, thermics may refer to any of several physical topics involving heat. It has also been used as a synonym for thermodynamics, but is only rarely used in this way today.
The term soldier has the synonyms combatant, fighter, or warrior.(The term troop is rarely used in the singular, but "trooper" might fit some uses.)
Both expressions are commonly used and accepted in English, but "the necessity of" is slightly more common and traditional than "the necessity for." Either can be used depending on personal preference or context.
shed can sometimes be used as a synonym
A synonym for the adjective used is second hand. A synonym for the verb used is employed.