Toil

To work extremely hard or grind continuously.

grudging

Reluctantly, petty, or resentful in giving or spending

chaff

Material consisting of seed coverings and husks separated from grain

Shirk

To avoid or neglect ones assigned duties or responsibilities

cryptic

having a secret, obscure, or mysterious meaning

Indefatigable

showining unstained enthusiasm with unflagging, tireless vitality

maxim

A short statement expressing a general truth or rule of conduct

whelp

to give birth to a puppy or cub

tractable

easily manages or controlled or trained

contemptible

deserving of scorn, hatred, or total disrespect

ambush

the act of hiding and waiting to spring a surprise attack

ignominious

deserving and bringing or public disgrace, shame or humiliation

exploit

A notable, bold, or daring achievement

impromptu

Done without preparation or rehearsal, or forethought

posthumously

occurring , awarder, or continuing after a persons death