BACKBONELESS Antonyms

• possessing or displaying courage; able to face and deal with danger or fear without flinching

• having been learned or found or determined especially by investigation

• characterized by great determination

• devoting full strength and concentrated attention to

• determined or decided upon as by an authority

• strongly motivated to succeed

• oblivious of dangers or perils or calmly resolute in facing them

• invulnerable to fear or intimidation

• firm in purpose or belief; characterized by firmness and determination

• characterized by quickness and firmness

• marked by firm determination or resolution; not shakable

• firm and dependable especially in loyalty

• having strength or power greater than average or expected

• having a strong physiological or chemical effect

• not faint or feeble

• having or wielding force or authority

• immune to attack; incapable of being tampered with

• of good quality and condition; solidly built

• of verbs not having standard (or regular) inflection

• being distilled rather than fermented; having a high alcoholic content

• freshly made or left

• strong and sure

• having a determined will

• not given to gentleness or sentimentality

• physically toughened

• resistant to cutting or chewing

• someone who learned to fight in the streets rather than being formally trained in the sport of boxing

• an aggressive and violent young criminal

• a cruel and brutal fellow

• very difficult; severely testing stamina or resolution

• substantially made or constructed

• violent and lawless

• feeling physical discomfort or pain (`tough' is occasionally used colloquially for `bad')

• unfortunate or hard to bear

• making great mental demands; hard to comprehend or solve or believe

• marked by firm determination or resolution; not shakable

• not showing abrupt variations