PUNCTURABLE Antonyms

• secured with bastions or fortifications

• having something added to increase the strength

• not admitting of penetration or passage into or through

• permitting little if any light to pass through because of denseness of matter

• impossible to understand

• not easily destroyed

• very long lasting

• immune to attack; impregnable

• recovering readily from adversity, depression, or the like

• elastic; rebounds readily

• 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

• 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

• being without punctures or incapable of being punctured