say it: suh-SPISH-uhs
suspicious is an adjective meaning "openly distrustful and unwilling to confide". It carries 2 recorded senses.
openly distrustful and unwilling to confide
not as expected
“there was something fishy about the accident”
“up to some funny business”
“some definitely queer goings-on”
“a shady deal”
“her motives were suspect”
“suspicious behavior”
colloquialism
Definitions, synonyms and semantic relations for suspicious come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.