surly Bad-tempered and unfriendly surmise Suppose that something is true without having evidence to confirm it surreptitious Kept secret, especially because it would not be approved of susceptible likely or liable to be influenced or harmed by a particular thing swathe A broad strip or area of something sybarite A person who is self-indulgent in their fondness for sensuous luxury synergy The interaction or cooperation of two or more organizations, substances, or other agents to produce a combined effect greater than the sum of their separate effects taciturn Inclined to silence; reserved in speech; reluctant to join in conversation tangible Perceptible by touch taxonomic Pertaining to, or involving, the principles and practice of classifying living organisms.