Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb detect

1 sense of detect

Sense 1
detect, observe, find, discover, notice -- (discover or determine the existence, presence, or fact of; "She detected high levels of lead in her drinking water"; "We found traces of lead in the paint")
       => spy, sight -- (catch sight of; to perceive with the eyes; "he caught sight of the king's men coming over the ridge")

Antonyms of adj detected

2 senses of detected

Sense 1
detected (vs. undetected) -- (perceived or discerned; "the detected micrometeoritic material")

undetected (vs. detected) -- (not perceived or discerned; "they feared some undetected trace of poison"; "she looked around to be sure her faux pas was undetected")
        => undiscovered -- (not discovered; "with earth-based telescopes many stars remain undiscovered")
        => unobserved, unseen -- (not observed)

Sense 2
detected -- (perceived with the mind; "he winced at the detected flicker of irony in her voice")

INDIRECT (VIA noticed) -> unnoticed -- (not noticed; "hoped his departure had passed unnoticed")

Similarity of adj detected

2 senses of detected

Sense 1
detected (vs. undetected) -- (perceived or discerned; "the detected micrometeoritic material")
       => perceived -- (detected by means of the senses; "a perceived difference in temperature")
       => sensed, perceived -- (detected by instinct or inference rather than by recognized perceptual cues; "the felt presence of an intruder"; "a sensed presence in the room raised goosebumps on her arms"; "a perceived threat")
       => heard -- (detected or perceived by the sense of hearing; "a conversation heard through the wall")

Sense 2
detected -- (perceived with the mind; "he winced at the detected flicker of irony in her voice")
       => noticed (vs. unnoticed) -- (being perceived or observed; "an easily noticed effect on the rate of growth")