Antonyms of adj congruous

2 senses of congruous

Sense 1
congruous (vs. incongruous), congruent -- (corresponding in character or kind)

incongruous (vs. congruous) -- (lacking in harmony or compatibility or appropriateness; "a plan incongruous with reason"; "incongruous behavior"; "a joke that was incongruous with polite conversation")
        => discrepant, inconsistent -- (not in agreement)
        => inappropriate, incompatible, out or keeping (predicate), unfitting -- (not in keeping with what is correct or proper; "completely inappropriate behavior")
        => inharmonious -- (lacking in harmony of parts; "an inharmonious (or incongruous) mixture of architectural styles")
        => ironic, ironical -- (characterized by often poignant difference or incongruity between what is expected and what actually is; "madness, an ironic fate for such a clear thinker"; "it was ironical that the well-planned scheme failed so completely")

Sense 2
congruous -- (suitable or appropriate together)

INDIRECT (VIA compatible) -> incompatible -- (not compatible; "incompatible personalities"; "incompatible colors")

Similarity of adj congruous

2 senses of congruous

Sense 1
congruous (vs. incongruous), congruent -- (corresponding in character or kind)
       => harmonious -- (suitable and fitting; "the tailored clothes were harmonious with her military bearing")
          Also See-> appropriate#1

Sense 2
congruous -- (suitable or appropriate together)
       => compatible (vs. incompatible) -- (able to exist and perform in harmonious or agreeable combination; "a compatible married couple"; "her deeds were compatible with her ideology")