Meaning : Relating to or caused by temperament.
Example :
Temperamental indifference to neatness.
Temperamental peculiarities.
Meaning : Subject to sharply varying moods.
Example :
A temperamental opera singer.
Synonyms : moody
Meaning : Likely to perform unpredictably.
Example :
Erratic winds are the bane of a sailor.
A temperamental motor; sometimes it would start and sometimes it wouldn't.
That beautiful but temperamental instrument the flute.
Synonyms : erratic