(of speech sounds); produced with the back of the tongue raised toward or touching the velum; "Russian distinguished between hard consonants and palatalized or soft consonants"
disagreeable to the senses; "the harsh cry of a blue jay"; "harsh cognac"; "the harsh white light makes you screw up your eyes"; "harsh irritating smoke filled the hallway"
immune to attack; incapable of being tampered with; "an impregnable fortress"; "fortifications that made the frontier inviolable"; "a secure telephone connection"
able to tolerate environmental conditions or physiological stress; "the plant is tolerant of saltwater"; "these fish are quite tolerant as long as extremes of pH are avoided"; "the new hybrid is more resistant to drought"
marked by firm determination or resolution; not shakable; "firm convictions"; "a firm mouth"; "steadfast resolve"; "a man of unbendable perseverence"; "unwavering loyalty"
possessing or displaying a distinctive feature to a heightened degree; "intense heat"; "intense anxiety"; "intense desire"; "intense emotion"; "the skunk's intense acrid odor"; "intense pain"; "enemy fire was intense"
having or showing great strength or force or intensity; "struck a mighty blow"; "the mighty logger Paul Bunyan"; "the pen is mightier than the sword"- Bulwer-Lytton
having great power or force or potency or effect; "the most powerful government in western Europe"; "his powerful arms"; "a powerful bomb"; "the horse's powerful kick"; "powerful drugs"; "a powerful argument"