lethargic 眠い、無気力な
We are all susceptible to a lethargic feeling after a heavy meal.
jettison ～を捨てる、捨てること
The pilot decided it would be imprudent to jettison his fuel over the populated area.
intrinsic 本来備わっている、本質的な、固有の
Man sets the price of gold ; it has no intrinsic value.
transient 一時的な
The young lover was susceptible to transient feelings of jealousy when he saw his sweetheart dancing with his best friend.
terse 簡潔な
The mayor made a terse statement in which he rebuked his election opponent for making a contemptuous accusation.
＊contemptuous 軽蔑を示す
cogent 強制力のある、説得力のある
The best debator makes the most cogent presentation.